775753074467755 has 4 divisors (see below), whose sum is σ = 930903689361312. Its totient is φ = 620602459574200.

The previous prime is 775753074467717. The next prime is 775753074467779. The reversal of 775753074467755 is 557764470357577.

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

It is a de Polignac number, because none of the positive numbers 2^k-775753074467755 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77575307446771 + ... + 77575307446780.

It is an arithmetic number, because the mean of its divisors is an integer number (232725922340328).

Almost surely, 2^{775753074467755} is an apocalyptic number.

775753074467755 is a deficient number, since it is larger than the sum of its proper divisors (155150614893557).

775753074467755 is a wasteful number, since it uses less digits than its factorization.

775753074467755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155150614893556.

The product of its (nonzero) digits is 21176820000, while the sum is 79.

The spelling of 775753074467755 in words is "seven hundred seventy-five trillion, seven hundred fifty-three billion, seventy-four million, four hundred sixty-seven thousand, seven hundred fifty-five".