622379394961 has 8 divisors (see below), whose sum is σ = 636238891944. Its totient is φ = 608637851520.

The previous prime is 622379394947. The next prime is 622379394977. The reversal of 622379394961 is 169493973226.

622379394961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 110868354961 + 511511040000 = 332969^2 + 715200^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 622379394961 - 2⁵ = 622379394929 is a prime.

It is a super-2 number, since 2×622379394961² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 622379394961.

It is not an unprimeable number, because it can be changed into a prime (622379394911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29477716 + ... + 29498821.

It is an arithmetic number, because the mean of its divisors is an integer number (79529861493).

Almost surely, 2^622379394961 is an apocalyptic number.

622379394961 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

622379394961 is a deficient number, since it is larger than the sum of its proper divisors (13859496983).

622379394961 is a wasteful number, since it uses less digits than its factorization.

622379394961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58976771.

The product of its digits is 26453952, while the sum is 61.

The spelling of 622379394961 in words is "six hundred twenty-two billion, three hundred seventy-nine million, three hundred ninety-four thousand, nine hundred sixty-one".