39977239038 has 64 divisors (see below), whose sum is σ = 89142819840. Its totient is φ = 11848054400.

The previous prime is 39977238997. The next prime is 39977239039. The reversal of 39977239038 is 83093277993.

It is a super-2 number, since 2×39977239038² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39977239039) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 5297548 + ... + 5305088.

It is an arithmetic number, because the mean of its divisors is an integer number (1392856560).

Almost surely, 2^39977239038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39977239038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44571409920).

39977239038 is an abundant number, since it is smaller than the sum of its proper divisors (49165580802).

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

39977239038 is a wasteful number, since it uses less digits than its factorization.

39977239038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9313.

The product of its (nonzero) digits is 15431472, while the sum is 60.

The spelling of 39977239038 in words is "thirty-nine billion, nine hundred seventy-seven million, two hundred thirty-nine thousand, thirty-eight".