69064618057 has 2 divisors, whose sum is σ = 69064618058. Its totient is φ = 69064618056.

The previous prime is 69064617943. The next prime is 69064618061. The reversal of 69064618057 is 75081646096.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68943530041 + 121088016 = 262571^2 + 11004^2 .

It is a cyclic number.

It is not a de Polignac number, because 69064618057 - 2²³ = 69056229449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 69064617995 and 69064618013.

It is not a weakly prime, because it can be changed into another prime (69064618067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34532309028 + 34532309029.

It is an arithmetic number, because the mean of its divisors is an integer number (34532309029).

Almost surely, 2^69064618057 is an apocalyptic number.

It is an amenable number.

69064618057 is a deficient number, since it is larger than the sum of its proper divisors (1).

69064618057 is an equidigital number, since it uses as much as digits as its factorization.

69064618057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 69064618057 in words is "sixty-nine billion, sixty-four million, six hundred eighteen thousand, fifty-seven".