37945966672940 has 24 divisors (see below), whose sum is σ = 79826086131792. Its totient is φ = 15151804551360.

The previous prime is 37945966672903. The next prime is 37945966672961. The reversal of 37945966672940 is 4927666954973.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1661370659 + ... + 1661393498.

It is an arithmetic number, because the mean of its divisors is an integer number (3326086922158).

Almost surely, 2^{37945966672940} is an apocalyptic number.

It is an amenable number.

37945966672940 is an abundant number, since it is smaller than the sum of its proper divisors (41880119458852).

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

37945966672940 is a wasteful number, since it uses less digits than its factorization.

37945966672940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322764737 (or 3322764735 counting only the distinct ones).

The product of its (nonzero) digits is 3703553280, while the sum is 77.

The spelling of 37945966672940 in words is "thirty-seven trillion, nine hundred forty-five billion, nine hundred sixty-six million, six hundred seventy-two thousand, nine hundred forty".