2640140152776 has 96 divisors (see below), whose sum is σ = 8652560192640. Its totient is φ = 709953652224.

The previous prime is 2640140152757. The next prime is 2640140152787. The reversal of 2640140152776 is 6772510410462.

2640140152776 is a `hidden beast` number, since 2 + 6 + 40 + 14 + 0 + 1 + 527 + 76 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154061236 + ... + 154078371.

It is an arithmetic number, because the mean of its divisors is an integer number (90130835340).

Almost surely, 2^{2640140152776} is an apocalyptic number.

It is an amenable number.

2640140152776 is an abundant number, since it is smaller than the sum of its proper divisors (6012420039864).

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

2640140152776 is a wasteful number, since it uses less digits than its factorization.

2640140152776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308139643 (or 308139636 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 2640140152776 in words is "two trillion, six hundred forty billion, one hundred forty million, one hundred fifty-two thousand, seven hundred seventy-six".