28979500607 has 4 divisors (see below), whose sum is σ = 28986156216. Its totient is φ = 28972845000.

The previous prime is 28979500591. The next prime is 28979500621. The reversal of 28979500607 is 70600597982.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28979500607 - 2⁴ = 28979500591 is a prime.

It is a super-2 number, since 2×28979500607² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28973500607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3321269 + ... + 3329982.

It is an arithmetic number, because the mean of its divisors is an integer number (7246539054).

Almost surely, 2^28979500607 is an apocalyptic number.

28979500607 is a deficient number, since it is larger than the sum of its proper divisors (6655609).

28979500607 is an equidigital number, since it uses as much as digits as its factorization.

28979500607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6655608.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 28979500607 in words is "twenty-eight billion, nine hundred seventy-nine million, five hundred thousand, six hundred seven".