40739987913 has 16 divisors (see below), whose sum is σ = 55045900800. Its totient is φ = 26799102720.

The previous prime is 40739987887. The next prime is 40739987923. The reversal of 40739987913 is 31978993704.

It is a happy number.

40739987913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40739987913 - 2⁸ = 40739987657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40739987923) 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, 179673 + ... + 337286.

It is an arithmetic number, because the mean of its divisors is an integer number (3440368800).

Almost surely, 2^40739987913 is an apocalyptic number.

It is an amenable number.

40739987913 is a deficient number, since it is larger than the sum of its proper divisors (14305912887).

40739987913 is a wasteful number, since it uses less digits than its factorization.

40739987913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517312.

The product of its (nonzero) digits is 10287648, while the sum is 60.

The spelling of 40739987913 in words is "forty billion, seven hundred thirty-nine million, nine hundred eighty-seven thousand, nine hundred thirteen".