78384046814 has 32 divisors (see below), whose sum is σ = 123897427200. Its totient is φ = 37138026240.

The previous prime is 78384046781. The next prime is 78384046877. The reversal of 78384046814 is 41864048387.

It is a super-2 number, since 2×78384046814² (a number of 23 digits) contains 22 as substring.

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, 1592627 + ... + 1641105.

It is an arithmetic number, because the mean of its divisors is an integer number (3871794600).

Almost surely, 2^78384046814 is an apocalyptic number.

78384046814 is a deficient number, since it is larger than the sum of its proper divisors (45513380386).

78384046814 is a wasteful number, since it uses less digits than its factorization.

78384046814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49028.

The product of its (nonzero) digits is 4128768, while the sum is 53.

The spelling of 78384046814 in words is "seventy-eight billion, three hundred eighty-four million, forty-six thousand, eight hundred fourteen".