686290782162 has 32 divisors (see below), whose sum is σ = 1373508968832. Its totient is φ = 228609091584.

The previous prime is 686290782131. The next prime is 686290782173. The reversal of 686290782162 is 261287092686.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74811808 + ... + 74820980.

It is an arithmetic number, because the mean of its divisors is an integer number (42922155276).

Almost surely, 2^686290782162 is an apocalyptic number.

686290782162 is an abundant number, since it is smaller than the sum of its proper divisors (687218186670).

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

686290782162 is a wasteful number, since it uses less digits than its factorization.

686290782162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16242.

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 686290782162 in words is "six hundred eighty-six billion, two hundred ninety million, seven hundred eighty-two thousand, one hundred sixty-two".