28392781631760 has 480 divisors, whose sum is σ = 121027342682880. Its totient is φ = 5990564376576.

The previous prime is 28392781631743. The next prime is 28392781631771. The reversal of 28392781631760 is 6713618729382.

28392781631760 is a `hidden beast` number, since 2 + 8 + 39 + 278 + 16 + 317 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3000429 + ... + 8110988.

It is an arithmetic number, because the mean of its divisors is an integer number (252140297256).

Almost surely, 2^{28392781631760} is an apocalyptic number.

28392781631760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28392781631760 is an abundant number, since it is smaller than the sum of its proper divisors (92634561051120).

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

28392781631760 is a wasteful number, since it uses less digits than its factorization.

28392781631760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111472 (or 11111447 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 28392781631760 in words is "twenty-eight trillion, three hundred ninety-two billion, seven hundred eighty-one million, six hundred thirty-one thousand, seven hundred sixty".