39986701272 has 512 divisors, whose sum is σ = 137894400000. Its totient is φ = 10711346688.

The previous prime is 39986701253. The next prime is 39986701319. The reversal of 39986701272 is 27210768993.

39986701272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 79496173 + ... + 79496675.

It is an arithmetic number, because the mean of its divisors is an integer number (269325000).

Almost surely, 2^39986701272 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 39986701272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68947200000).

39986701272 is an abundant number, since it is smaller than the sum of its proper divisors (97907698728).

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

39986701272 is a wasteful number, since it uses less digits than its factorization.

39986701272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 39986701272 in words is "thirty-nine billion, nine hundred eighty-six million, seven hundred one thousand, two hundred seventy-two".