76569745157 has 2 divisors, whose sum is σ = 76569745158. Its totient is φ = 76569745156.

The previous prime is 76569745141. The next prime is 76569745181. The reversal of 76569745157 is 75154796567.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76548502276 + 21242881 = 276674^2 + 4609^2 .

It is a cyclic number.

It is not a de Polignac number, because 76569745157 - 2⁴ = 76569745141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76569745157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76569745757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38284872578 + 38284872579.

It is an arithmetic number, because the mean of its divisors is an integer number (38284872579).

Almost surely, 2^76569745157 is an apocalyptic number.

It is an amenable number.

76569745157 is a deficient number, since it is larger than the sum of its proper divisors (1).

76569745157 is an equidigital number, since it uses as much as digits as its factorization.

76569745157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55566000, while the sum is 62.

The spelling of 76569745157 in words is "seventy-six billion, five hundred sixty-nine million, seven hundred forty-five thousand, one hundred fifty-seven".