40208012786613 has 32 divisors (see below), whose sum is σ = 61434477941760. Its totient is φ = 22914136252800.

The previous prime is 40208012786581. The next prime is 40208012786629. The reversal of 40208012786613 is 31668721080204.

It is not a de Polignac number, because 40208012786613 - 2⁵ = 40208012786581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40208012786653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17933938 + ... + 20050988.

It is an arithmetic number, because the mean of its divisors is an integer number (1919827435680).

Almost surely, 2^{40208012786613} is an apocalyptic number.

It is an amenable number.

40208012786613 is a deficient number, since it is larger than the sum of its proper divisors (21226465155147).

40208012786613 is a wasteful number, since it uses less digits than its factorization.

40208012786613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119497.

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 40208012786613 in words is "forty trillion, two hundred eight billion, twelve million, seven hundred eighty-six thousand, six hundred thirteen".