9839872372 has 24 divisors (see below), whose sum is σ = 18787749120. Its totient is φ = 4472064960.

The previous prime is 9839872369. The next prime is 9839872373. The reversal of 9839872372 is 2732789389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9839872373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561568 + ... + 578824.

It is an arithmetic number, because the mean of its divisors is an integer number (782822880).

Almost surely, 2^9839872372 is an apocalyptic number.

It is an amenable number.

9839872372 is a deficient number, since it is larger than the sum of its proper divisors (8947876748).

9839872372 is a wasteful number, since it uses less digits than its factorization.

9839872372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30231 (or 30229 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 58.

The square root of 9839872372 is about 99196.1308318021. The cubic root of 9839872372 is about 2142.8732747137.

The spelling of 9839872372 in words is "nine billion, eight hundred thirty-nine million, eight hundred seventy-two thousand, three hundred seventy-two".