2640302347408 has 40 divisors (see below), whose sum is σ = 5608682539200. Its totient is φ = 1194106573440.

The previous prime is 2640302347363. The next prime is 2640302347433. The reversal of 2640302347408 is 8047432030462.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37657735 + ... + 37727782.

It is an arithmetic number, because the mean of its divisors is an integer number (140217063480).

Almost surely, 2^{2640302347408} is an apocalyptic number.

It is an amenable number.

2640302347408 is an abundant number, since it is smaller than the sum of its proper divisors (2968380191792).

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

2640302347408 is a wasteful number, since it uses less digits than its factorization.

2640302347408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75385735 (or 75385729 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 43.

The spelling of 2640302347408 in words is "two trillion, six hundred forty billion, three hundred two million, three hundred forty-seven thousand, four hundred eight".