78118046340 has 24 divisors (see below), whose sum is σ = 218730529920. Its totient is φ = 20831479008.

The previous prime is 78118046333. The next prime is 78118046353. The reversal of 78118046340 is 4364081187.

It is a super-2 number, since 2×78118046340² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78118046292 and 78118046301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650983660 + ... + 650983779.

It is an arithmetic number, because the mean of its divisors is an integer number (9113772080).

Almost surely, 2^78118046340 is an apocalyptic number.

It is an amenable number.

78118046340 is an abundant number, since it is smaller than the sum of its proper divisors (140612483580).

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

78118046340 is a wasteful number, since it uses less digits than its factorization.

78118046340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301967451 (or 1301967449 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 78118046340 in words is "seventy-eight billion, one hundred eighteen million, forty-six thousand, three hundred forty".