28531087950000 has 120 divisors (see below), whose sum is σ = 92125742231376. Its totient is φ = 7608290080000.

The previous prime is 28531087949989. The next prime is 28531087950091. The reversal of 28531087950000 is 5978013582.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×28531087950000² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94953627 + ... + 95253626.

Almost surely, 2^{28531087950000} is an apocalyptic number.

28531087950000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28531087950000 is an abundant number, since it is smaller than the sum of its proper divisors (63594654281376).

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

28531087950000 is an equidigital number, since it uses as much as digits as its factorization.

28531087950000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190207289 (or 190207263 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 28531087950000 in words is "twenty-eight trillion, five hundred thirty-one billion, eighty-seven million, nine hundred fifty thousand".