772946857819 has 2 divisors, whose sum is σ = 772946857820. Its totient is φ = 772946857818.

The previous prime is 772946857789. The next prime is 772946857847. The reversal of 772946857819 is 918758649277.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 772946857819 - 2¹⁹ = 772946333531 is a prime.

It is a super-2 number, since 2×772946857819² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (772946857919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386473428909 + 386473428910.

It is an arithmetic number, because the mean of its divisors is an integer number (386473428910).

Almost surely, 2^772946857819 is an apocalyptic number.

772946857819 is a deficient number, since it is larger than the sum of its proper divisors (1).

772946857819 is an equidigital number, since it uses as much as digits as its factorization.

772946857819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 426746880, while the sum is 73.

The spelling of 772946857819 in words is "seven hundred seventy-two billion, nine hundred forty-six million, eight hundred fifty-seven thousand, eight hundred nineteen".