38736073972 has 12 divisors (see below), whose sum is σ = 69441498756. Its totient is φ = 18895645760.

The previous prime is 38736073969. The next prime is 38736074009. The reversal of 38736073972 is 27937063783.

It can be written as a sum of positive squares in 2 ways, for example, as 15208808976 + 23527264996 = 123324^2 + 153386^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118097623 + ... + 118097950.

It is an arithmetic number, because the mean of its divisors is an integer number (5786791563).

Almost surely, 2^38736073972 is an apocalyptic number.

It is an amenable number.

38736073972 is a deficient number, since it is larger than the sum of its proper divisors (30705424784).

38736073972 is a wasteful number, since it uses less digits than its factorization.

38736073972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236195618 (or 236195616 counting only the distinct ones).

The product of its (nonzero) digits is 8001504, while the sum is 55.

The spelling of 38736073972 in words is "thirty-eight billion, seven hundred thirty-six million, seventy-three thousand, nine hundred seventy-two".