623427101477 has 16 divisors (see below), whose sum is σ = 649327014000. Its totient is φ = 598042621440.

The previous prime is 623427101461. The next prime is 623427101489. The reversal of 623427101477 is 774101724326.

It is a Cunningham number, because it is equal to 789574²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 119711848036 + 503715253441 = 345994^2 + 709729^2 .

It is a cyclic number.

It is not a de Polignac number, because 623427101477 - 2⁴ = 623427101461 is a prime.

It is a super-2 number, since 2×623427101477² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623427101377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 878027 + ... + 1420487.

It is an arithmetic number, because the mean of its divisors is an integer number (40582938375).

Almost surely, 2^623427101477 is an apocalyptic number.

It is an amenable number.

623427101477 is a deficient number, since it is larger than the sum of its proper divisors (25899912523).

623427101477 is a wasteful number, since it uses less digits than its factorization.

623427101477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542936.

The product of its (nonzero) digits is 395136, while the sum is 44.

The spelling of 623427101477 in words is "six hundred twenty-three billion, four hundred twenty-seven million, one hundred one thousand, four hundred seventy-seven".