28966004372 has 12 divisors (see below), whose sum is σ = 50807578836. Its totient is φ = 14449553280.

The previous prime is 28966004233. The next prime is 28966004407. The reversal of 28966004372 is 27340066982.

It can be written as a sum of positive squares in 2 ways, for example, as 1953109636 + 27012894736 = 44194^2 + 164356^2 .

It is a super-2 number, since 2×28966004372² (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 3 ways as a sum of consecutive naturals, for example, 8360279 + ... + 8363742.

It is an arithmetic number, because the mean of its divisors is an integer number (4233964903).

Almost surely, 2^28966004372 is an apocalyptic number.

It is an amenable number.

28966004372 is a deficient number, since it is larger than the sum of its proper divisors (21841574464).

28966004372 is a wasteful number, since it uses less digits than its factorization.

28966004372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16724458 (or 16724456 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 28966004372 in words is "twenty-eight billion, nine hundred sixty-six million, four thousand, three hundred seventy-two".