39984742912 has 40 divisors (see below), whose sum is σ = 81840004092. Its totient is φ = 19504742400.

The previous prime is 39984742891. The next prime is 39984742933. The reversal of 39984742912 is 21924748993.

It is an interprime number because it is at equal distance from previous prime (39984742891) and next prime (39984742933).

It can be written as a sum of positive squares in 2 ways, for example, as 39610552576 + 374190336 = 199024^2 + 19344^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 931389 + ... + 973372.

Almost surely, 2^39984742912 is an apocalyptic number.

39984742912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

39984742912 is an abundant number, since it is smaller than the sum of its proper divisors (41855261180).

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

39984742912 is an equidigital number, since it uses as much as digits as its factorization.

39984742912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904820 (or 1904804 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 58.

The spelling of 39984742912 in words is "thirty-nine billion, nine hundred eighty-four million, seven hundred forty-two thousand, nine hundred twelve".