39574780660945 has 16 divisors (see below), whose sum is σ = 47568444153552. Its totient is φ = 31607365155840.

The previous prime is 39574780660871. The next prime is 39574780660951. The reversal of 39574780660945 is 54906608747593.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1432311091264 + 38142469569681 = 1196792^2 + 6175959^2 .

It is not a de Polignac number, because 39574780660945 - 2⁷ = 39574780660817 is a prime.

It is a Duffinian number.

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, 25338925 + ... + 26855365.

It is an arithmetic number, because the mean of its divisors is an integer number (2973027759597).

Almost surely, 2^{39574780660945} is an apocalyptic number.

It is an amenable number.

39574780660945 is a deficient number, since it is larger than the sum of its proper divisors (7993663492607).

39574780660945 is a wasteful number, since it uses less digits than its factorization.

39574780660945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525092.

The product of its (nonzero) digits is 1371686400, while the sum is 73.

The spelling of 39574780660945 in words is "thirty-nine trillion, five hundred seventy-four billion, seven hundred eighty million, six hundred sixty thousand, nine hundred forty-five".