2668784530764 has 24 divisors (see below), whose sum is σ = 6793269715008. Its totient is φ = 808722585040.

The previous prime is 2668784530757. The next prime is 2668784530787. The reversal of 2668784530764 is 4670354878662.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 2668784530695 and 2668784530704.

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, 10109032182 + ... + 10109032445.

It is an arithmetic number, because the mean of its divisors is an integer number (283052904792).

Almost surely, 2^{2668784530764} is an apocalyptic number.

It is an amenable number.

2668784530764 is an abundant number, since it is smaller than the sum of its proper divisors (4124485184244).

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

2668784530764 is a wasteful number, since it uses less digits than its factorization.

2668784530764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20218064645 (or 20218064643 counting only the distinct ones).

The product of its (nonzero) digits is 325140480, while the sum is 66.

The spelling of 2668784530764 in words is "two trillion, six hundred sixty-eight billion, seven hundred eighty-four million, five hundred thirty thousand, seven hundred sixty-four".