61755272179 has 2 divisors, whose sum is σ = 61755272180. Its totient is φ = 61755272178.

The previous prime is 61755272123. The next prime is 61755272221. The reversal of 61755272179 is 97127255716.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61755272179 - 2¹⁵ = 61755239411 is a prime.

It is not a weakly prime, because it can be changed into another prime (61755272119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30877636089 + 30877636090.

It is an arithmetic number, because the mean of its divisors is an integer number (30877636090).

Almost surely, 2^61755272179 is an apocalyptic number.

61755272179 is a deficient number, since it is larger than the sum of its proper divisors (1).

61755272179 is an equidigital number, since it uses as much as digits as its factorization.

61755272179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1852200, while the sum is 52.

The spelling of 61755272179 in words is "sixty-one billion, seven hundred fifty-five million, two hundred seventy-two thousand, one hundred seventy-nine".