62696779888861 has 2 divisors, whose sum is σ = 62696779888862. Its totient is φ = 62696779888860.

The previous prime is 62696779888859. The next prime is 62696779888901. The reversal of 62696779888861 is 16888897769626.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36656364802500 + 26040415086361 = 6054450^2 + 5102981^2 .

It is a cyclic number.

It is not a de Polignac number, because 62696779888861 - 2¹ = 62696779888859 is a prime.

Together with 62696779888859, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (62696779888661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31348389944430 + 31348389944431.

It is an arithmetic number, because the mean of its divisors is an integer number (31348389944431).

Almost surely, 2^{62696779888861} is an apocalyptic number.

It is an amenable number.

62696779888861 is a deficient number, since it is larger than the sum of its proper divisors (1).

62696779888861 is an equidigital number, since it uses as much as digits as its factorization.

62696779888861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42138206208, while the sum is 91.

The spelling of 62696779888861 in words is "sixty-two trillion, six hundred ninety-six billion, seven hundred seventy-nine million, eight hundred eighty-eight thousand, eight hundred sixty-one".