45621738560 has 112 divisors (see below), whose sum is σ = 117198227376. Its totient is φ = 16851075072.

The previous prime is 45621738511. The next prime is 45621738587. The reversal of 45621738560 is 6583712654.

It can be written as a sum of positive squares in 8 ways, for example, as 5378168896 + 40243569664 = 73336^2 + 200608^2 .

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, 209204 + ... + 367436.

Almost surely, 2^45621738560 is an apocalyptic number.

45621738560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45621738560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58599113688).

45621738560 is an abundant number, since it is smaller than the sum of its proper divisors (71576488816).

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

45621738560 is a wasteful number, since it uses less digits than its factorization.

45621738560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158320 (or 158310 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 45621738560 in words is "forty-five billion, six hundred twenty-one million, seven hundred thirty-eight thousand, five hundred sixty".