78958640112 has 160 divisors (see below), whose sum is σ = 232349057280. Its totient is φ = 22885416960.

The previous prime is 78958640107. The next prime is 78958640129. The reversal of 78958640112 is 21104685987.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1614288 + ... + 1662480.

It is an arithmetic number, because the mean of its divisors is an integer number (1452181608).

Almost surely, 2^78958640112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78958640112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116174528640).

78958640112 is an abundant number, since it is smaller than the sum of its proper divisors (153390417168).

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

78958640112 is a wasteful number, since it uses less digits than its factorization.

78958640112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48351 (or 48345 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 78958640112 in words is "seventy-eight billion, nine hundred fifty-eight million, six hundred forty thousand, one hundred twelve".