78998116534 has 8 divisors (see below), whose sum is σ = 118522278360. Its totient is φ = 39490690416.

The previous prime is 78998116517. The next prime is 78998116573. The reversal of 78998116534 is 43561189987.

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

It is a congruent number.

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, 4172119 + ... + 4191010.

It is an arithmetic number, because the mean of its divisors is an integer number (14815284795).

Almost surely, 2^78998116534 is an apocalyptic number.

78998116534 is a deficient number, since it is larger than the sum of its proper divisors (39524161826).

78998116534 is a wasteful number, since it uses less digits than its factorization.

78998116534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8367854.

The product of its digits is 13063680, while the sum is 61.

The spelling of 78998116534 in words is "seventy-eight billion, nine hundred ninety-eight million, one hundred sixteen thousand, five hundred thirty-four".