2573764641678 has 32 divisors (see below), whose sum is σ = 5345312771232. Its totient is φ = 825530918400.

The previous prime is 2573764641659. The next prime is 2573764641731. The reversal of 2573764641678 is 8761464673752.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71642713 + ... + 71678628.

It is an arithmetic number, because the mean of its divisors is an integer number (167041024101).

Almost surely, 2^{2573764641678} is an apocalyptic number.

2573764641678 is an abundant number, since it is smaller than the sum of its proper divisors (2771548129554).

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

2573764641678 is a wasteful number, since it uses less digits than its factorization.

2573764641678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143321460.

The product of its digits is 284497920, while the sum is 66.

The spelling of 2573764641678 in words is "two trillion, five hundred seventy-three billion, seven hundred sixty-four million, six hundred forty-one thousand, six hundred seventy-eight".