28058956956 has 60 divisors (see below), whose sum is σ = 75334165368. Its totient is φ = 9100198368.

The previous prime is 28058956949. The next prime is 28058957027. The reversal of 28058956956 is 65965985082.

It is a junction number, because it is equal to n+sod(n) for n = 28058956893 and 28058956902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1158306 + ... + 1182281.

Almost surely, 2^28058956956 is an apocalyptic number.

It is an amenable number.

28058956956 is an abundant number, since it is smaller than the sum of its proper divisors (47275208412).

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

28058956956 is a wasteful number, since it uses less digits than its factorization.

28058956956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340640 (or 2340629 counting only the distinct ones).

The product of its (nonzero) digits is 46656000, while the sum is 63.

The spelling of 28058956956 in words is "twenty-eight billion, fifty-eight million, nine hundred fifty-six thousand, nine hundred fifty-six".