40657494339 has 24 divisors (see below), whose sum is σ = 73218692352. Its totient is φ = 21120775920.

The previous prime is 40657494281. The next prime is 40657494343. The reversal of 40657494339 is 93349475604.

It is a happy number.

It is not a de Polignac number, because 40657494339 - 2⁹ = 40657493827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40657494359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29333719 + ... + 29335104.

It is an arithmetic number, because the mean of its divisors is an integer number (3050778848).

Almost surely, 2^40657494339 is an apocalyptic number.

40657494339 is a deficient number, since it is larger than the sum of its proper divisors (32561198013).

40657494339 is a wasteful number, since it uses less digits than its factorization.

40657494339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58668847 (or 58668844 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 54.

The spelling of 40657494339 in words is "forty billion, six hundred fifty-seven million, four hundred ninety-four thousand, three hundred thirty-nine".