78373645118 has 16 divisors (see below), whose sum is σ = 117733451136. Its totient is φ = 39129190560.

The previous prime is 78373645117. The next prime is 78373645151. The reversal of 78373645118 is 81154637387.

It is a super-2 number, since 2×78373645118² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78373645118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78373645117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9875480 + ... + 9883412.

It is an arithmetic number, because the mean of its divisors is an integer number (7358340696).

Almost surely, 2^78373645118 is an apocalyptic number.

78373645118 is a deficient number, since it is larger than the sum of its proper divisors (39359806018).

78373645118 is a wasteful number, since it uses less digits than its factorization.

78373645118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14579.

The product of its digits is 3386880, while the sum is 53.

The spelling of 78373645118 in words is "seventy-eight billion, three hundred seventy-three million, six hundred forty-five thousand, one hundred eighteen".