2765564913851 has 2 divisors, whose sum is σ = 2765564913852. Its totient is φ = 2765564913850.

The previous prime is 2765564913757. The next prime is 2765564913887. The reversal of 2765564913851 is 1583194655672.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2765564913851 is a prime.

It is not a weakly prime, because it can be changed into another prime (2765564933851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1382782456925 + 1382782456926.

It is an arithmetic number, because the mean of its divisors is an integer number (1382782456926).

Almost surely, 2^{2765564913851} is an apocalyptic number.

2765564913851 is a deficient number, since it is larger than the sum of its proper divisors (1).

2765564913851 is an equidigital number, since it uses as much as digits as its factorization.

2765564913851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432000, while the sum is 62.

The spelling of 2765564913851 in words is "two trillion, seven hundred sixty-five billion, five hundred sixty-four million, nine hundred thirteen thousand, eight hundred fifty-one".