678855770496 has 96 divisors (see below), whose sum is σ = 1967532457800. Its totient is φ = 224657252352.

The previous prime is 678855770473. The next prime is 678855770519. The reversal of 678855770496 is 694077558876.

678855770496 is a `hidden beast` number, since 6 + 7 + 8 + 8 + 5 + 577 + 0 + 49 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (678855770473) and next prime (678855770519).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1959601 + ... + 2279856.

Almost surely, 2^678855770496 is an apocalyptic number.

It is an amenable number.

678855770496 is an abundant number, since it is smaller than the sum of its proper divisors (1288676687304).

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

678855770496 is a wasteful number, since it uses less digits than its factorization.

678855770496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4239616 (or 4239601 counting only the distinct ones).

The product of its (nonzero) digits is 711244800, while the sum is 72.

The spelling of 678855770496 in words is "six hundred seventy-eight billion, eight hundred fifty-five million, seven hundred seventy thousand, four hundred ninety-six".