61796975393 has 2 divisors, whose sum is σ = 61796975394. Its totient is φ = 61796975392.

The previous prime is 61796975369. The next prime is 61796975399. The reversal of 61796975393 is 39357969716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60283998784 + 1512976609 = 245528^2 + 38897^2 .

It is a cyclic number.

It is not a de Polignac number, because 61796975393 - 2⁶ = 61796975329 is a prime.

It is not a weakly prime, because it can be changed into another prime (61796975399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30898487696 + 30898487697.

It is an arithmetic number, because the mean of its divisors is an integer number (30898487697).

Almost surely, 2^61796975393 is an apocalyptic number.

It is an amenable number.

61796975393 is a deficient number, since it is larger than the sum of its proper divisors (1).

61796975393 is an equidigital number, since it uses as much as digits as its factorization.

61796975393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57868020, while the sum is 65.

The spelling of 61796975393 in words is "sixty-one billion, seven hundred ninety-six million, nine hundred seventy-five thousand, three hundred ninety-three".