2805744113664 has 96 divisors (see below), whose sum is σ = 7920167214960. Its totient is φ = 880233414656.

The previous prime is 2805744113663. The next prime is 2805744113771. The reversal of 2805744113664 is 4663114475082.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2805744113663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13326849 + ... + 13535744.

Almost surely, 2^{2805744113664} is an apocalyptic number.

2805744113664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2805744113664 is an abundant number, since it is smaller than the sum of its proper divisors (5114423101296).

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

2805744113664 is a wasteful number, since it uses less digits than its factorization.

2805744113664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26862635 (or 26862615 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 2805744113664 in words is "two trillion, eight hundred five billion, seven hundred forty-four million, one hundred thirteen thousand, six hundred sixty-four".