778363870740 has 48 divisors (see below), whose sum is σ = 2225789459712. Its totient is φ = 203147449216.

The previous prime is 778363870723. The next prime is 778363870751. The reversal of 778363870740 is 47078363877.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138004959 + ... + 138010598.

It is an arithmetic number, because the mean of its divisors is an integer number (46370613744).

Almost surely, 2^778363870740 is an apocalyptic number.

It is an amenable number.

778363870740 is an abundant number, since it is smaller than the sum of its proper divisors (1447425588972).

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

778363870740 is a wasteful number, since it uses less digits than its factorization.

778363870740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276015616 (or 276015614 counting only the distinct ones).

The product of its (nonzero) digits is 33191424, while the sum is 60.

The spelling of 778363870740 in words is "seven hundred seventy-eight billion, three hundred sixty-three million, eight hundred seventy thousand, seven hundred forty".