628636333081 has 8 divisors (see below), whose sum is σ = 629196738624. Its totient is φ = 628076126160.

The previous prime is 628636333037. The next prime is 628636333103. The reversal of 628636333081 is 180333636826.

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 628636333081 - 2¹³ = 628636324889 is a prime.

It is a super-2 number, since 2×628636333081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628636333021) 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, 6685116 + ... + 6778498.

It is an arithmetic number, because the mean of its divisors is an integer number (78649592328).

Almost surely, 2^628636333081 is an apocalyptic number.

It is an amenable number.

628636333081 is a deficient number, since it is larger than the sum of its proper divisors (560405543).

628636333081 is a wasteful number, since it uses less digits than its factorization.

628636333081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99311.

The product of its (nonzero) digits is 2239488, while the sum is 49.

The spelling of 628636333081 in words is "six hundred twenty-eight billion, six hundred thirty-six million, three hundred thirty-three thousand, eighty-one".