28831311841500 has 240 divisors, whose sum is σ = 107500216824000. Its totient is φ = 6590014070400.

The previous prime is 28831311841439. The next prime is 28831311841531. The reversal of 28831311841500 is 514811313882.

28831311841500 is a `hidden beast` number, since 2 + 8 + 8 + 3 + 131 + 1 + 8 + 4 + 1 + 500 = 666.

It is a super-2 number, since 2×28831311841500² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 50565375 + ... + 51132374.

It is an arithmetic number, because the mean of its divisors is an integer number (447917570100).

Almost surely, 2^{28831311841500} is an apocalyptic number.

28831311841500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28831311841500 is an abundant number, since it is smaller than the sum of its proper divisors (78668904982500).

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

28831311841500 is a wasteful number, since it uses less digits than its factorization.

28831311841500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101697787 (or 101697766 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The spelling of 28831311841500 in words is "twenty-eight trillion, eight hundred thirty-one billion, three hundred eleven million, eight hundred forty-one thousand, five hundred".