61435596757 has 2 divisors, whose sum is σ = 61435596758. Its totient is φ = 61435596756.

The previous prime is 61435596713. The next prime is 61435596767. The reversal of 61435596757 is 75769553416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58609504836 + 2826091921 = 242094^2 + 53161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61435596757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61435596707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30717798378 + 30717798379.

It is an arithmetic number, because the mean of its divisors is an integer number (30717798379).

Almost surely, 2^61435596757 is an apocalyptic number.

It is an amenable number.

61435596757 is a deficient number, since it is larger than the sum of its proper divisors (1).

61435596757 is an equidigital number, since it uses as much as digits as its factorization.

61435596757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23814000, while the sum is 58.

The spelling of 61435596757 in words is "sixty-one billion, four hundred thirty-five million, five hundred ninety-six thousand, seven hundred fifty-seven".