78672631118 has 4 divisors (see below), whose sum is σ = 118008946680. Its totient is φ = 39336315558.

The previous prime is 78672631111. The next prime is 78672631123. The reversal of 78672631118 is 81113627687.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78672631111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19668157778 + ... + 19668157781.

It is an arithmetic number, because the mean of its divisors is an integer number (29502236670).

Almost surely, 2^78672631118 is an apocalyptic number.

78672631118 is a deficient number, since it is larger than the sum of its proper divisors (39336315562).

78672631118 is a wasteful number, since it uses less digits than its factorization.

78672631118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39336315561.

The product of its digits is 677376, while the sum is 50.

The spelling of 78672631118 in words is "seventy-eight billion, six hundred seventy-two million, six hundred thirty-one thousand, one hundred eighteen".