28155953496 has 64 divisors (see below), whose sum is σ = 76807036800. Its totient is φ = 8530099200.

The previous prime is 28155953477. The next prime is 28155953557. The reversal of 28155953496 is 69435955182.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1420776 + ... + 1440456.

It is an arithmetic number, because the mean of its divisors is an integer number (1200109950).

Almost surely, 2^28155953496 is an apocalyptic number.

It is an amenable number.

28155953496 is an abundant number, since it is smaller than the sum of its proper divisors (48651083304).

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

28155953496 is a wasteful number, since it uses less digits than its factorization.

28155953496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25120 (or 25116 counting only the distinct ones).

The product of its digits is 11664000, while the sum is 57.

The spelling of 28155953496 in words is "twenty-eight billion, one hundred fifty-five million, nine hundred fifty-three thousand, four hundred ninety-six".