61796975369 has 2 divisors, whose sum is σ = 61796975370. Its totient is φ = 61796975368.

The previous prime is 61796975363. The next prime is 61796975393. The reversal of 61796975369 is 96357969716.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33237665344 + 28559310025 = 182312^2 + 168995^2 .

It is a cyclic number.

It is not a de Polignac number, because 61796975369 - 2²⁸ = 61528539913 is a prime.

It is a super-2 number, since 2×61796975369² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61796975299 and 61796975308.

It is not a weakly prime, because it can be changed into another prime (61796975363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30898487684 + 30898487685.

It is an arithmetic number, because the mean of its divisors is an integer number (30898487685).

Almost surely, 2^61796975369 is an apocalyptic number.

It is an amenable number.

61796975369 is a deficient number, since it is larger than the sum of its proper divisors (1).

61796975369 is an equidigital number, since it uses as much as digits as its factorization.

61796975369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 115736040, while the sum is 68.

The spelling of 61796975369 in words is "sixty-one billion, seven hundred ninety-six million, nine hundred seventy-five thousand, three hundred sixty-nine".