39641074667974 has 32 divisors (see below), whose sum is σ = 67778284260960. Its totient is φ = 17237177395200.

The previous prime is 39641074667893. The next prime is 39641074667983. The reversal of 39641074667974 is 47976647014693.

It is a junction number, because it is equal to n+sod(n) for n = 39641074667897 and 39641074667906.

It is a congruent 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, 221582107 + ... + 221760934.

It is an arithmetic number, because the mean of its divisors is an integer number (2118071383155).

Almost surely, 2^{39641074667974} is an apocalyptic number.

39641074667974 is a deficient number, since it is larger than the sum of its proper divisors (28137209592986).

39641074667974 is a wasteful number, since it uses less digits than its factorization.

39641074667974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443343256.

The product of its (nonzero) digits is 1152216576, while the sum is 73.

It can be divided in two parts, 396410746 and 67974, that added together give a triangular number (396478720 = T₂₈₁₅₉).

The spelling of 39641074667974 in words is "thirty-nine trillion, six hundred forty-one billion, seventy-four million, six hundred sixty-seven thousand, nine hundred seventy-four".