82779762113 has 2 divisors, whose sum is σ = 82779762114. Its totient is φ = 82779762112.

The previous prime is 82779762071. The next prime is 82779762257. The reversal of 82779762113 is 31126797728.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45014835889 + 37764926224 = 212167^2 + 194332^2 .

It is a cyclic number.

It is not a de Polignac number, because 82779762113 - 2⁶ = 82779762049 is a prime.

It is not a weakly prime, because it can be changed into another prime (82779162113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41389881056 + 41389881057.

It is an arithmetic number, because the mean of its divisors is an integer number (41389881057).

Almost surely, 2^82779762113 is an apocalyptic number.

It is an amenable number.

82779762113 is a deficient number, since it is larger than the sum of its proper divisors (1).

82779762113 is an equidigital number, since it uses as much as digits as its factorization.

82779762113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1778112, while the sum is 53.

The spelling of 82779762113 in words is "eighty-two billion, seven hundred seventy-nine million, seven hundred sixty-two thousand, one hundred thirteen".