78458371396 has 12 divisors (see below), whose sum is σ = 138069202320. Its totient is φ = 39010027880.

The previous prime is 78458371393. The next prime is 78458371421. The reversal of 78458371396 is 69317385487.

It is a super-2 number, since 2×78458371396² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78458371393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54788650 + ... + 54790081.

It is an arithmetic number, because the mean of its divisors is an integer number (11505766860).

Almost surely, 2^78458371396 is an apocalyptic number.

It is an amenable number.

78458371396 is a deficient number, since it is larger than the sum of its proper divisors (59610830924).

78458371396 is a wasteful number, since it uses less digits than its factorization.

78458371396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109578914 (or 109578912 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 61.

The spelling of 78458371396 in words is "seventy-eight billion, four hundred fifty-eight million, three hundred seventy-one thousand, three hundred ninety-six".