45517389928 has 16 divisors (see below), whose sum is σ = 85573918980. Its totient is φ = 22697678208.

The previous prime is 45517389913. The next prime is 45517389961. The reversal of 45517389928 is 82998371554.

It can be written as a sum of positive squares in 2 ways, for example, as 43015589604 + 2501800324 = 207402^2 + 50018^2 .

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, 7623925 + ... + 7629892.

Almost surely, 2^45517389928 is an apocalyptic number.

It is an amenable number.

45517389928 is a deficient number, since it is larger than the sum of its proper divisors (40056529052).

45517389928 is a wasteful number, since it uses less digits than its factorization.

45517389928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15254196 (or 15254192 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 61.

The spelling of 45517389928 in words is "forty-five billion, five hundred seventeen million, three hundred eighty-nine thousand, nine hundred twenty-eight".