776717449513 has 4 divisors (see below), whose sum is σ = 776729132928. Its totient is φ = 776705766100.

The previous prime is 776717449423. The next prime is 776717449559. The reversal of 776717449513 is 315944717677.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 776717449513 - 2³⁷ = 639278496041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (776717444513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5741413 + ... + 5875138.

It is an arithmetic number, because the mean of its divisors is an integer number (194182283232).

Almost surely, 2^776717449513 is an apocalyptic number.

It is an amenable number.

776717449513 is a deficient number, since it is larger than the sum of its proper divisors (11683415).

776717449513 is a wasteful number, since it uses less digits than its factorization.

776717449513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11683414.

The product of its digits is 31116960, while the sum is 61.

The spelling of 776717449513 in words is "seven hundred seventy-six billion, seven hundred seventeen million, four hundred forty-nine thousand, five hundred thirteen".