38671990372 has 6 divisors (see below), whose sum is σ = 67675983158. Its totient is φ = 19335995184.

The previous prime is 38671990369. The next prime is 38671990393. The reversal of 38671990372 is 27309917683.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 31971585636 + 6700404736 = 178806^2 + 81856^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4833998793 + ... + 4833998800.

Almost surely, 2^38671990372 is an apocalyptic number.

It is an amenable number.

38671990372 is a deficient number, since it is larger than the sum of its proper divisors (29003992786).

38671990372 is a wasteful number, since it uses less digits than its factorization.

38671990372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9667997597 (or 9667997595 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 55.

The spelling of 38671990372 in words is "thirty-eight billion, six hundred seventy-one million, nine hundred ninety thousand, three hundred seventy-two".