28290151792 has 80 divisors (see below), whose sum is σ = 66372894720. Its totient is φ = 11403316224.

The previous prime is 28290151787. The next prime is 28290151811. The reversal of 28290151792 is 29715109282.

It is a super-2 number, since 2×28290151792² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 3344913 + ... + 3353359.

It is an arithmetic number, because the mean of its divisors is an integer number (829661184).

Almost surely, 2^28290151792 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 28290151792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33186447360).

28290151792 is an abundant number, since it is smaller than the sum of its proper divisors (38082742928).

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

28290151792 is a wasteful number, since it uses less digits than its factorization.

28290151792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10238 (or 10232 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 28290151792 in words is "twenty-eight billion, two hundred ninety million, one hundred fifty-one thousand, seven hundred ninety-two".