39745207044 has 81 divisors (see below), whose sum is σ = 101601454773. Its totient is φ = 13100475744.

The previous prime is 39745206983. The next prime is 39745207081. The reversal of 39745207044 is 44070254793.

The square root of 39745207044 is 199362.

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

39745207044 is a `hidden beast` number, since 3 + 97 + 452 + 0 + 70 + 44 = 666.

39745207044 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., 4656424644 + 35088782400 = 68238^2 + 187320^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 178229517 + ... + 178229739.

Almost surely, 2^39745207044 is an apocalyptic number.

39745207044 is the 199362-nd square number.

It is an amenable number.

39745207044 is an abundant number, since it is smaller than the sum of its proper divisors (61856247729).

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

39745207044 is a wasteful number, since it uses less digits than its factorization.

39745207044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 39745207044 in words is "thirty-nine billion, seven hundred forty-five million, two hundred seven thousand, forty-four".