83077856249 has 2 divisors, whose sum is σ = 83077856250. Its totient is φ = 83077856248.

The previous prime is 83077856243. The next prime is 83077856311. The reversal of 83077856249 is 94265877038.

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., 71806849024 + 11271007225 = 267968^2 + 106165^2 .

It is a cyclic number.

It is not a de Polignac number, because 83077856249 - 2⁴ = 83077856233 is a prime.

It is not a weakly prime, because it can be changed into another prime (83077856243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41538928124 + 41538928125.

It is an arithmetic number, because the mean of its divisors is an integer number (41538928125).

Almost surely, 2^83077856249 is an apocalyptic number.

It is an amenable number.

83077856249 is a deficient number, since it is larger than the sum of its proper divisors (1).

83077856249 is an equidigital number, since it uses as much as digits as its factorization.

83077856249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20321280, while the sum is 59.

The spelling of 83077856249 in words is "eighty-three billion, seventy-seven million, eight hundred fifty-six thousand, two hundred forty-nine".