61690579498277 has 2 divisors, whose sum is σ = 61690579498278. Its totient is φ = 61690579498276.

The previous prime is 61690579498201. The next prime is 61690579498307. The reversal of 61690579498277 is 77289497509616.

61690579498277 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., 54356616817636 + 7333962680641 = 7372694^2 + 2708129^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61690579498277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61690579494277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30845289749138 + 30845289749139.

It is an arithmetic number, because the mean of its divisors is an integer number (30845289749139).

Almost surely, 2^{61690579498277} is an apocalyptic number.

It is an amenable number.

61690579498277 is a deficient number, since it is larger than the sum of its proper divisors (1).

61690579498277 is an equidigital number, since it uses as much as digits as its factorization.

61690579498277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880541440, while the sum is 80.

The spelling of 61690579498277 in words is "sixty-one trillion, six hundred ninety billion, five hundred seventy-nine million, four hundred ninety-eight thousand, two hundred seventy-seven".