28863718713972 has 96 divisors (see below), whose sum is σ = 75166862400000. Its totient is φ = 9578191738752.

The previous prime is 28863718713937. The next prime is 28863718713983. The reversal of 28863718713972 is 27931781736882.

28863718713972 is a `hidden beast` number, since 2 + 8 + 86 + 371 + 87 + 1 + 39 + 72 = 666.

It is a super-2 number, since 2×28863718713972² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28863718713972.

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, 89380654 + ... + 89703002.

It is an arithmetic number, because the mean of its divisors is an integer number (782988150000).

Almost surely, 2^{28863718713972} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28863718713972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37583431200000).

28863718713972 is an abundant number, since it is smaller than the sum of its proper divisors (46303143686028).

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

28863718713972 is a wasteful number, since it uses less digits than its factorization.

28863718713972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326070 (or 326062 counting only the distinct ones).

The product of its digits is 341397504, while the sum is 72.

The spelling of 28863718713972 in words is "twenty-eight trillion, eight hundred sixty-three billion, seven hundred eighteen million, seven hundred thirteen thousand, nine hundred seventy-two".