775230868978 has 8 divisors (see below), whose sum is σ = 1175911992540. Its totient is φ = 383260204800.

The previous prime is 775230868967. The next prime is 775230868981. The reversal of 775230868978 is 879868032577.

It can be written as a sum of positive squares in 2 ways, for example, as 759935858049 + 15295010929 = 871743^2 + 123673^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2177614623 + ... + 2177614978.

Almost surely, 2^775230868978 is an apocalyptic number.

775230868978 is a deficient number, since it is larger than the sum of its proper divisors (400681123562).

775230868978 is a wasteful number, since it uses less digits than its factorization.

775230868978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4355229692.

The product of its (nonzero) digits is 284497920, while the sum is 70.

The spelling of 775230868978 in words is "seven hundred seventy-five billion, two hundred thirty million, eight hundred sixty-eight thousand, nine hundred seventy-eight".