2256077546813 has 2 divisors, whose sum is σ = 2256077546814. Its totient is φ = 2256077546812.

The previous prime is 2256077546797. The next prime is 2256077546881. The reversal of 2256077546813 is 3186457706522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2122901452324 + 133176094489 = 1457018^2 + 364933^2 .

It is a cyclic number.

It is not a de Polignac number, because 2256077546813 - 2⁴ = 2256077546797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2256077543813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128038773406 + 1128038773407.

It is an arithmetic number, because the mean of its divisors is an integer number (1128038773407).

Almost surely, 2^{2256077546813} is an apocalyptic number.

It is an amenable number.

2256077546813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256077546813 is an equidigital number, since it uses as much as digits as its factorization.

2256077546813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16934400, while the sum is 56.

The spelling of 2256077546813 in words is "two trillion, two hundred fifty-six billion, seventy-seven million, five hundred forty-six thousand, eight hundred thirteen".