8707742136 has 64 divisors (see below), whose sum is σ = 24494400000. Its totient is φ = 2865833568.

The previous prime is 8707742093. The next prime is 8707742137. The reversal of 8707742136 is 6312477078.

It is a junction number, because it is equal to n+sod(n) for n = 8707742091 and 8707742100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8707742137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238086 + ... + 272213.

It is an arithmetic number, because the mean of its divisors is an integer number (382725000).

Almost surely, 2^8707742136 is an apocalyptic number.

It is an amenable number.

8707742136 is an abundant number, since it is smaller than the sum of its proper divisors (15786657864).

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

8707742136 is a wasteful number, since it uses less digits than its factorization.

8707742136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510393 (or 510383 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 8707742136 is about 93315.2835070440. The cubic root of 8707742136 is about 2057.3200245727.

The spelling of 8707742136 in words is "eight billion, seven hundred seven million, seven hundred forty-two thousand, one hundred thirty-six".