7139208972 has 48 divisors (see below), whose sum is σ = 19050054912. Its totient is φ = 2038470720.

The previous prime is 7139208949. The next prime is 7139208983. The reversal of 7139208972 is 2798029317.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109147 + ... + 161837.

It is an arithmetic number, because the mean of its divisors is an integer number (396876144).

Almost surely, 2^7139208972 is an apocalyptic number.

It is an amenable number.

7139208972 is an abundant number, since it is smaller than the sum of its proper divisors (11910845940).

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

7139208972 is a wasteful number, since it uses less digits than its factorization.

7139208972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54318 (or 54316 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 7139208972 is about 84493.8398464645. The cubic root of 7139208972 is about 1925.5288565039.

The spelling of 7139208972 in words is "seven billion, one hundred thirty-nine million, two hundred eight thousand, nine hundred seventy-two".