2573686764 has 48 divisors (see below), whose sum is σ = 7279117440. Its totient is φ = 779904720.

The previous prime is 2573686723. The next prime is 2573686769. The reversal of 2573686764 is 4676863752.

2573686764 is a `hidden beast` number, since 2 + 573 + 6 + 8 + 6 + 7 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 2573686764.

It is not an unprimeable number, because it can be changed into a prime (2573686769) by changing a digit.

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, 1082014 + ... + 1084389.

It is an arithmetic number, because the mean of its divisors is an integer number (151648280).

Almost surely, 2^2573686764 is an apocalyptic number.

It is an amenable number.

2573686764 is an abundant number, since it is smaller than the sum of its proper divisors (4705430676).

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

2573686764 is a wasteful number, since it uses less digits than its factorization.

2573686764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166427 (or 2166419 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 54.

The square root of 2573686764 is about 50731.5164764469. The cubic root of 2573686764 is about 1370.4143460517.

The spelling of 2573686764 in words is "two billion, five hundred seventy-three million, six hundred eighty-six thousand, seven hundred sixty-four".