39474436690 has 16 divisors (see below), whose sum is σ = 76519677528. Its totient is φ = 14575176576.

The previous prime is 39474436649. The next prime is 39474436721. The reversal of 39474436690 is 9663447493.

It can be written as a sum of positive squares in 4 ways, for example, as 23910127641 + 15564309049 = 154629^2 + 124757^2 .

It is a super-2 number, since 2×39474436690² (a number of 22 digits) contains 22 as substring.

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, 151824627 + ... + 151824886.

Almost surely, 2^39474436690 is an apocalyptic number.

39474436690 is a deficient number, since it is larger than the sum of its proper divisors (37045240838).

39474436690 is a wasteful number, since it uses less digits than its factorization.

39474436690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303649533.

The product of its (nonzero) digits is 11757312, while the sum is 55.

The spelling of 39474436690 in words is "thirty-nine billion, four hundred seventy-four million, four hundred thirty-six thousand, six hundred ninety".