2651764116765 has 32 divisors (see below), whose sum is σ = 4297109040000. Its totient is φ = 1396258963200.

The previous prime is 2651764116751. The next prime is 2651764116773. The reversal of 2651764116765 is 5676114671562.

It is not a de Polignac number, because 2651764116765 - 2¹⁶ = 2651764051229 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1978915 + ... + 3036384.

It is an arithmetic number, because the mean of its divisors is an integer number (134284657500).

Almost surely, 2^{2651764116765} is an apocalyptic number.

It is an amenable number.

2651764116765 is a deficient number, since it is larger than the sum of its proper divisors (1645344923235).

2651764116765 is a wasteful number, since it uses less digits than its factorization.

2651764116765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5015757.

The product of its digits is 12700800, while the sum is 57.

The spelling of 2651764116765 in words is "two trillion, six hundred fifty-one billion, seven hundred sixty-four million, one hundred sixteen thousand, seven hundred sixty-five".