45578881512 has 24 divisors (see below), whose sum is σ = 123442804290. Its totient is φ = 15192960480.

The previous prime is 45578881489. The next prime is 45578881529. The reversal of 45578881512 is 21518887554.

It is a happy number.

45578881512 is a `hidden beast` number, since 4 + 55 + 78 + 8 + 8 + 1 + 512 = 666.

45578881512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 29428030116 + 16150851396 = 171546^2 + 127086^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×45578881512² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 316519939 + ... + 316520082.

Almost surely, 2^45578881512 is an apocalyptic number.

It is an amenable number.

45578881512 is an abundant number, since it is smaller than the sum of its proper divisors (77863922778).

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

45578881512 is a wasteful number, since it uses less digits than its factorization.

45578881512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633040033 (or 633040026 counting only the distinct ones).

The product of its digits is 3584000, while the sum is 54.

The spelling of 45578881512 in words is "forty-five billion, five hundred seventy-eight million, eight hundred eighty-one thousand, five hundred twelve".