83465572428 has 36 divisors (see below), whose sum is σ = 241122765520. Its totient is φ = 23847306336.

The previous prime is 83465572403. The next prime is 83465572441. The reversal of 83465572428 is 82427556438.

83465572428 is a `hidden beast` number, since 8 + 3 + 4 + 65 + 572 + 4 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165606043 + ... + 165606546.

Almost surely, 2^83465572428 is an apocalyptic number.

It is an amenable number.

83465572428 is an abundant number, since it is smaller than the sum of its proper divisors (157657193092).

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

83465572428 is a wasteful number, since it uses less digits than its factorization.

83465572428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331212606 (or 331212601 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 54.

The spelling of 83465572428 in words is "eighty-three billion, four hundred sixty-five million, five hundred seventy-two thousand, four hundred twenty-eight".