61593801377 has 2 divisors, whose sum is σ = 61593801378. Its totient is φ = 61593801376.

The previous prime is 61593801341. The next prime is 61593801403. The reversal of 61593801377 is 77310839516.

61593801377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56076134416 + 5517666961 = 236804^2 + 74281^2 .

It is a cyclic number.

It is not a de Polignac number, because 61593801377 - 2⁸ = 61593801121 is a prime.

It is a super-2 number, since 2×61593801377² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61593801337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30796900688 + 30796900689.

It is an arithmetic number, because the mean of its divisors is an integer number (30796900689).

Almost surely, 2^61593801377 is an apocalyptic number.

It is an amenable number.

61593801377 is a deficient number, since it is larger than the sum of its proper divisors (1).

61593801377 is an equidigital number, since it uses as much as digits as its factorization.

61593801377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 50.

The spelling of 61593801377 in words is "sixty-one billion, five hundred ninety-three million, eight hundred one thousand, three hundred seventy-seven".