776256172327 has 4 divisors (see below), whose sum is σ = 776373668896. Its totient is φ = 776138675760.

The previous prime is 776256172213. The next prime is 776256172429. The reversal of 776256172327 is 723271652677.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 776256172327 - 2³⁹ = 226500358439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (776256172927) 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, 58738374 + ... + 58751587.

It is an arithmetic number, because the mean of its divisors is an integer number (194093417224).

Almost surely, 2^776256172327 is an apocalyptic number.

776256172327 is a deficient number, since it is larger than the sum of its proper divisors (117496569).

776256172327 is a wasteful number, since it uses less digits than its factorization.

776256172327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117496568.

The product of its digits is 10372320, while the sum is 55.

The spelling of 776256172327 in words is "seven hundred seventy-six billion, two hundred fifty-six million, one hundred seventy-two thousand, three hundred twenty-seven".