28080383631 has 16 divisors (see below), whose sum is σ = 37977546240. Its totient is φ = 18451873440.

The previous prime is 28080383623. The next prime is 28080383647. The reversal of 28080383631 is 13638308082.

It is not a de Polignac number, because 28080383631 - 2³ = 28080383623 is a prime.

It is a super-2 number, since 2×28080383631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28080381631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 947961 + ... + 977133.

It is an arithmetic number, because the mean of its divisors is an integer number (2373596640).

Almost surely, 2^28080383631 is an apocalyptic number.

28080383631 is a deficient number, since it is larger than the sum of its proper divisors (9897162609).

28080383631 is a wasteful number, since it uses less digits than its factorization.

28080383631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33766.

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 28080383631 in words is "twenty-eight billion, eighty million, three hundred eighty-three thousand, six hundred thirty-one".