78369334398 has 48 divisors (see below), whose sum is σ = 172536323856. Its totient is φ = 25703879040.

The previous prime is 78369334367. The next prime is 78369334481. The reversal of 78369334398 is 89343396387.

It is a super-2 number, since 2×78369334398² (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 23 ways as a sum of consecutive naturals, for example, 482361 + ... + 624027.

It is an arithmetic number, because the mean of its divisors is an integer number (3594506747).

Almost surely, 2^78369334398 is an apocalyptic number.

78369334398 is an abundant number, since it is smaller than the sum of its proper divisors (94166989458).

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

78369334398 is a wasteful number, since it uses less digits than its factorization.

78369334398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142169 (or 142166 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 63.

The spelling of 78369334398 in words is "seventy-eight billion, three hundred sixty-nine million, three hundred thirty-four thousand, three hundred ninety-eight".