39982470891 has 16 divisors (see below), whose sum is σ = 58412527488. Its totient is φ = 24125048000.

The previous prime is 39982470881. The next prime is 39982470893. The reversal of 39982470891 is 19807428993.

39982470891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 39982470891 - 2⁵ = 39982470859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39982470893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2661210 + ... + 2676191.

It is an arithmetic number, because the mean of its divisors is an integer number (3650782968).

Almost surely, 2^39982470891 is an apocalyptic number.

39982470891 is a deficient number, since it is larger than the sum of its proper divisors (18430056597).

39982470891 is a wasteful number, since it uses less digits than its factorization.

39982470891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5337642.

The product of its (nonzero) digits is 7838208, while the sum is 60.

The spelling of 39982470891 in words is "thirty-nine billion, nine hundred eighty-two million, four hundred seventy thousand, eight hundred ninety-one".