28057761152 has 32 divisors (see below), whose sum is σ = 56239285080. Its totient is φ = 13942803456.

The previous prime is 28057761097. The next prime is 28057761181. The reversal of 28057761152 is 25116775082.

It is a tau number, because it is divible by the number of its divisors (32).

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, 651533 + ... + 693260.

Almost surely, 2^28057761152 is an apocalyptic number.

It is an amenable number.

28057761152 is an abundant number, since it is smaller than the sum of its proper divisors (28181523928).

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

28057761152 is a wasteful number, since it uses less digits than its factorization.

28057761152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344970 (or 1344958 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 44.

The spelling of 28057761152 in words is "twenty-eight billion, fifty-seven million, seven hundred sixty-one thousand, one hundred fifty-two".