3939712872 has 256 divisors, whose sum is σ = 11645337600. Its totient is φ = 1102295040.

The previous prime is 3939712853. The next prime is 3939712883. The reversal of 3939712872 is 2782179393.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8435983 + ... + 8436449.

It is an arithmetic number, because the mean of its divisors is an integer number (45489600).

Almost surely, 2^3939712872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3939712872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5822668800).

3939712872 is an abundant number, since it is smaller than the sum of its proper divisors (7705624728).

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

3939712872 is a wasteful number, since it uses less digits than its factorization.

3939712872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 572 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 51.

The square root of 3939712872 is about 62767.1320995312. The cubic root of 3939712872 is about 1579.3856597888.

The spelling of 3939712872 in words is "three billion, nine hundred thirty-nine million, seven hundred twelve thousand, eight hundred seventy-two".