45215929720 has 64 divisors (see below), whose sum is σ = 110210184000. Its totient is φ = 16695080064.

The previous prime is 45215929699. The next prime is 45215929721. The reversal of 45215929720 is 2792951254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45215929721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169380 + ... + 345139.

It is an arithmetic number, because the mean of its divisors is an integer number (1722034125).

Almost surely, 2^45215929720 is an apocalyptic number.

45215929720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45215929720 is an abundant number, since it is smaller than the sum of its proper divisors (64994254280).

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

45215929720 is a wasteful number, since it uses less digits than its factorization.

45215929720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514569 (or 514539 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 45215929720 in words is "forty-five billion, two hundred fifteen million, nine hundred twenty-nine thousand, seven hundred twenty".