45991375936 has 63 divisors (see below), whose sum is σ = 100356305637. Its totient is φ = 20896592640.

The previous prime is 45991375933. The next prime is 45991375981. The reversal of 45991375936 is 63957319954.

The square root of 45991375936 is 214456.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 43313934400 + 2677441536 = 208120^2 + 51744^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45991375933) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18870910 + ... + 18873346.

Almost surely, 2^45991375936 is an apocalyptic number.

45991375936 is the 214456-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45991375936

45991375936 is an abundant number, since it is smaller than the sum of its proper divisors (54364929701).

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

45991375936 is an frugal number, since it uses more digits than its factorization.

45991375936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4908 (or 2450 counting only the distinct ones).

The product of its digits is 27556200, while the sum is 61.

The spelling of 45991375936 in words is "forty-five billion, nine hundred ninety-one million, three hundred seventy-five thousand, nine hundred thirty-six".