28372402915 has 16 divisors (see below), whose sum is σ = 34645010400. Its totient is φ = 22299639552.

The previous prime is 28372402873. The next prime is 28372403009. The reversal of 28372402915 is 51920427382.

It is a cyclic number.

It is not a de Polignac number, because 28372402915 - 2⁷ = 28372402787 is a prime.

It is a super-2 number, since 2×28372402915² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471031 + ... + 527839.

It is an arithmetic number, because the mean of its divisors is an integer number (2165313150).

Almost surely, 2^28372402915 is an apocalyptic number.

28372402915 is a deficient number, since it is larger than the sum of its proper divisors (6272607485).

28372402915 is a wasteful number, since it uses less digits than its factorization.

28372402915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58566.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 28372402915 in words is "twenty-eight billion, three hundred seventy-two million, four hundred two thousand, nine hundred fifteen".