123470777257 has 2 divisors, whose sum is σ = 123470777258. Its totient is φ = 123470777256.

The previous prime is 123470777251. The next prime is 123470777263. The reversal of 123470777257 is 752777074321.

It is a balanced prime because it is at equal distance from previous prime (123470777251) and next prime (123470777263).

It can be written as a sum of positive squares in only one way, i.e., 95162378256 + 28308399001 = 308484^2 + 168251^2 .

It is a cyclic number.

It is not a de Polignac number, because 123470777257 - 2¹⁵ = 123470744489 is a prime.

It is not a weakly prime, because it can be changed into another prime (123470777251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61735388628 + 61735388629.

It is an arithmetic number, because the mean of its divisors is an integer number (61735388629).

Almost surely, 2^123470777257 is an apocalyptic number.

It is an amenable number.

123470777257 is a deficient number, since it is larger than the sum of its proper divisors (1).

123470777257 is an equidigital number, since it uses as much as digits as its factorization.

123470777257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4033680, while the sum is 52.

The spelling of 123470777257 in words is "one hundred twenty-three billion, four hundred seventy million, seven hundred seventy-seven thousand, two hundred fifty-seven".