82777463579 has 2 divisors, whose sum is σ = 82777463580. Its totient is φ = 82777463578.

The previous prime is 82777463567. The next prime is 82777463617. The reversal of 82777463579 is 97536477728.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82777463579 - 2¹² = 82777459483 is a prime.

It is not a weakly prime, because it can be changed into another prime (82777463779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41388731789 + 41388731790.

It is an arithmetic number, because the mean of its divisors is an integer number (41388731790).

Almost surely, 2^82777463579 is an apocalyptic number.

82777463579 is a deficient number, since it is larger than the sum of its proper divisors (1).

82777463579 is an equidigital number, since it uses as much as digits as its factorization.

82777463579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124467840, while the sum is 65.

The spelling of 82777463579 in words is "eighty-two billion, seven hundred seventy-seven million, four hundred sixty-three thousand, five hundred seventy-nine".