28079131485 has 32 divisors (see below), whose sum is σ = 46397030400. Its totient is φ = 14485838400.

The previous prime is 28079131471. The next prime is 28079131511. The reversal of 28079131485 is 58413197082.

It is not a de Polignac number, because 28079131485 - 2⁵ = 28079131453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1102950 + ... + 1128120.

It is an arithmetic number, because the mean of its divisors is an integer number (1449907200).

Almost surely, 2^28079131485 is an apocalyptic number.

It is an amenable number.

28079131485 is a deficient number, since it is larger than the sum of its proper divisors (18317898915).

28079131485 is a wasteful number, since it uses less digits than its factorization.

28079131485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27609.

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 28079131485 in words is "twenty-eight billion, seventy-nine million, one hundred thirty-one thousand, four hundred eighty-five".