28745806152 has 64 divisors (see below), whose sum is σ = 82299755520. Its totient is φ = 8196199488.

The previous prime is 28745806147. The next prime is 28745806163. The reversal of 28745806152 is 25160854782.

It is a super-2 number, since 2×28745806152² (a number of 22 digits) contains 22 as substring.

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, 93858 + ... + 257489.

It is an arithmetic number, because the mean of its divisors is an integer number (1285933680).

Almost surely, 2^28745806152 is an apocalyptic number.

It is an amenable number.

28745806152 is an abundant number, since it is smaller than the sum of its proper divisors (53553949368).

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

28745806152 is a wasteful number, since it uses less digits than its factorization.

28745806152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351850 (or 351846 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 28745806152 in words is "twenty-eight billion, seven hundred forty-five million, eight hundred six thousand, one hundred fifty-two".