2646859996920 has 32 divisors (see below), whose sum is σ = 7940579991120. Its totient is φ = 705829332480.

The previous prime is 2646859996861. The next prime is 2646859997009. The reversal of 2646859996920 is 296999586462.

It is a congruent number.

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, 11028583201 + ... + 11028583440.

Almost surely, 2^{2646859996920} is an apocalyptic number.

2646859996920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2646859996920 is an abundant number, since it is smaller than the sum of its proper divisors (5293719994200).

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

2646859996920 is a wasteful number, since it uses less digits than its factorization.

2646859996920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22057166655 (or 22057166651 counting only the distinct ones).

The product of its (nonzero) digits is 906992640, while the sum is 75.

The spelling of 2646859996920 in words is "two trillion, six hundred forty-six billion, eight hundred fifty-nine million, nine hundred ninety-six thousand, nine hundred twenty".