2640293492419 has 32 divisors (see below), whose sum is σ = 3060536723136. Its totient is φ = 2251098501120.

The previous prime is 2640293492413. The next prime is 2640293492443. The reversal of 2640293492419 is 9142943920462.

It is a cyclic number.

It is not a de Polignac number, because 2640293492419 - 2³ = 2640293492411 is a prime.

It is a super-2 number, since 2×2640293492419² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2640293492419.

It is not an unprimeable number, because it can be changed into a prime (2640293492411) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 64672057 + ... + 64712869.

It is an arithmetic number, because the mean of its divisors is an integer number (95641772598).

Almost surely, 2^{2640293492419} is an apocalyptic number.

2640293492419 is a deficient number, since it is larger than the sum of its proper divisors (420243230717).

2640293492419 is a wasteful number, since it uses less digits than its factorization.

2640293492419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42055.

The product of its (nonzero) digits is 6718464, while the sum is 55.

The spelling of 2640293492419 in words is "two trillion, six hundred forty billion, two hundred ninety-three million, four hundred ninety-two thousand, four hundred nineteen".