8686738542 has 16 divisors (see below), whose sum is σ = 17374401360. Its totient is φ = 2895425472.

The previous prime is 8686738537. The next prime is 8686738553. The reversal of 8686738542 is 2458376868.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173188 + ... + 217640.

It is an arithmetic number, because the mean of its divisors is an integer number (1085900085).

Almost surely, 2^8686738542 is an apocalyptic number.

8686738542 is an abundant number, since it is smaller than the sum of its proper divisors (8687662818).

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

8686738542 is a wasteful number, since it uses less digits than its factorization.

8686738542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77027.

The product of its digits is 15482880, while the sum is 57.

The square root of 8686738542 is about 93202.6745431696. The cubic root of 8686738542 is about 2055.6645665877.

The spelling of 8686738542 in words is "eight billion, six hundred eighty-six million, seven hundred thirty-eight thousand, five hundred forty-two".