28779150291504 has 80 divisors (see below), whose sum is σ = 74625730790400. Its totient is φ = 9556976720128.

The previous prime is 28779150291499. The next prime is 28779150291553. The reversal of 28779150291504 is 40519205197782.

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, 508949857 + ... + 509006399.

It is an arithmetic number, because the mean of its divisors is an integer number (932821634880).

Almost surely, 2^{28779150291504} is an apocalyptic number.

28779150291504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28779150291504 is an abundant number, since it is smaller than the sum of its proper divisors (45846580498896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28779150291504 is a wasteful number, since it uses less digits than its factorization.

28779150291504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96242 (or 96236 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 60.

The spelling of 28779150291504 in words is "twenty-eight trillion, seven hundred seventy-nine billion, one hundred fifty million, two hundred ninety-one thousand, five hundred four".