78650787136 has 28 divisors (see below), whose sum is σ = 158048269120. Its totient is φ = 38827601280.

The previous prime is 78650787107. The next prime is 78650787179. The reversal of 78650787136 is 63178705687.

It is a super-2 number, since 2×78650787136² (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 3 ways as a sum of consecutive naturals, for example, 7772910 + ... + 7783021.

It is an arithmetic number, because the mean of its divisors is an integer number (5644581040).

Almost surely, 2^78650787136 is an apocalyptic number.

It is an amenable number.

78650787136 is an abundant number, since it is smaller than the sum of its proper divisors (79397481984).

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

78650787136 is a wasteful number, since it uses less digits than its factorization.

78650787136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15556022 (or 15556012 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 58.

The spelling of 78650787136 in words is "seventy-eight billion, six hundred fifty million, seven hundred eighty-seven thousand, one hundred thirty-six".