28046222956 has 12 divisors (see below), whose sum is σ = 50125164768. Its totient is φ = 13724747312.

The previous prime is 28046222887. The next prime is 28046223053. The reversal of 28046222956 is 65922264082.

It is a super-2 number, since 2×28046222956² (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 3 ways as a sum of consecutive naturals, for example, 74590831 + ... + 74591206.

It is an arithmetic number, because the mean of its divisors is an integer number (4177097064).

Almost surely, 2^28046222956 is an apocalyptic number.

It is an amenable number.

28046222956 is a deficient number, since it is larger than the sum of its proper divisors (22078941812).

28046222956 is a wasteful number, since it uses less digits than its factorization.

28046222956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149182088 (or 149182086 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 28046222956 in words is "twenty-eight billion, forty-six million, two hundred twenty-two thousand, nine hundred fifty-six".