77964782023 has 2 divisors, whose sum is σ = 77964782024. Its totient is φ = 77964782022.

The previous prime is 77964781981. The next prime is 77964782087. The reversal of 77964782023 is 32028746977.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77964782023 - 2²⁹ = 77427911111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77964782923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38982391011 + 38982391012.

It is an arithmetic number, because the mean of its divisors is an integer number (38982391012).

Almost surely, 2^77964782023 is an apocalyptic number.

77964782023 is a deficient number, since it is larger than the sum of its proper divisors (1).

77964782023 is an equidigital number, since it uses as much as digits as its factorization.

77964782023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7112448, while the sum is 55.

The spelling of 77964782023 in words is "seventy-seven billion, nine hundred sixty-four million, seven hundred eighty-two thousand, twenty-three".