80638648833 has 8 divisors (see below), whose sum is σ = 110140593696. Its totient is φ = 52447901600.

The previous prime is 80638648829. The next prime is 80638648897. The reversal of 80638648833 is 33884683608.

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 80638648833 - 2² = 80638648829 is a prime.

It is a super-2 number, since 2×80638648833² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80638648813) 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, 327799263 + ... + 327799508.

It is an arithmetic number, because the mean of its divisors is an integer number (13767574212).

Almost surely, 2^80638648833 is an apocalyptic number.

It is an amenable number.

80638648833 is a deficient number, since it is larger than the sum of its proper divisors (29501944863).

80638648833 is a wasteful number, since it uses less digits than its factorization.

80638648833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655598815.

The product of its (nonzero) digits is 15925248, while the sum is 57.

The spelling of 80638648833 in words is "eighty billion, six hundred thirty-eight million, six hundred forty-eight thousand, eight hundred thirty-three".