28707912001 has 32 divisors (see below), whose sum is σ = 31165274880. Its totient is φ = 26379285504.

The previous prime is 28707911993. The next prime is 28707912031. The reversal of 28707912001 is 10021970782.

It is not a de Polignac number, because 28707912001 - 2³ = 28707911993 is a prime.

It is a super-2 number, since 2×28707912001² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28707912031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11607301 + ... + 11609773.

It is an arithmetic number, because the mean of its divisors is an integer number (973914840).

Almost surely, 2^28707912001 is an apocalyptic number.

It is an amenable number.

28707912001 is a deficient number, since it is larger than the sum of its proper divisors (2457362879).

28707912001 is a wasteful number, since it uses less digits than its factorization.

28707912001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745.

The product of its (nonzero) digits is 14112, while the sum is 37.

The spelling of 28707912001 in words is "twenty-eight billion, seven hundred seven million, nine hundred twelve thousand, one".