495770778 has 12 divisors (see below), whose sum is σ = 1074170058. Its totient is φ = 165256920.

The previous prime is 495770767. The next prime is 495770797. The reversal of 495770778 is 877077594.

It can be written as a sum of positive squares in only one way, i.e., 384826689 + 110944089 = 19617^2 + 10533^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13771393 + ... + 13771428.

Almost surely, 2^495770778 is an apocalyptic number.

495770778 is an abundant number, since it is smaller than the sum of its proper divisors (578399280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

495770778 is a wasteful number, since it uses less digits than its factorization.

495770778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27542829 (or 27542826 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 54.

The square root of 495770778 is about 22265.9106707990. The cubic root of 495770778 is about 791.4563628469.

The spelling of 495770778 in words is "four hundred ninety-five million, seven hundred seventy thousand, seven hundred seventy-eight".