28114387512 has 32 divisors (see below), whose sum is σ = 70566007680. Its totient is φ = 9334124000.

The previous prime is 28114387493. The next prime is 28114387523. The reversal of 28114387512 is 21578341182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2327508 + ... + 2339555.

It is an arithmetic number, because the mean of its divisors is an integer number (2205187740).

Almost surely, 2^28114387512 is an apocalyptic number.

It is an amenable number.

28114387512 is an abundant number, since it is smaller than the sum of its proper divisors (42451620168).

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

28114387512 is a wasteful number, since it uses less digits than its factorization.

28114387512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4667323 (or 4667319 counting only the distinct ones).

The product of its digits is 107520, while the sum is 42.

The spelling of 28114387512 in words is "twenty-eight billion, one hundred fourteen million, three hundred eighty-seven thousand, five hundred twelve".