78352776418 has 8 divisors (see below), whose sum is σ = 134319045312. Its totient is φ = 33579761316.

The previous prime is 78352776389. The next prime is 78352776443. The reversal of 78352776418 is 81467725387.

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

It is a super-2 number, since 2×78352776418² (a number of 23 digits) contains 22 as substring.

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, 2798313430 + ... + 2798313457.

It is an arithmetic number, because the mean of its divisors is an integer number (16789880664).

Almost surely, 2^78352776418 is an apocalyptic number.

78352776418 is a deficient number, since it is larger than the sum of its proper divisors (55966268894).

78352776418 is a wasteful number, since it uses less digits than its factorization.

78352776418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5596626896.

The product of its digits is 15805440, while the sum is 58.

The spelling of 78352776418 in words is "seventy-eight billion, three hundred fifty-two million, seven hundred seventy-six thousand, four hundred eighteen".