688042228862 has 12 divisors (see below), whose sum is σ = 1096344106080. Its totient is φ = 323784578016.

The previous prime is 688042228859. The next prime is 688042228963. The reversal of 688042228862 is 268822240886.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 688042228798 and 688042228807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 595191662 + ... + 595192817.

It is an arithmetic number, because the mean of its divisors is an integer number (91362008840).

Almost surely, 2^688042228862 is an apocalyptic number.

688042228862 is a deficient number, since it is larger than the sum of its proper divisors (408301877218).

688042228862 is a wasteful number, since it uses less digits than its factorization.

688042228862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190384515 (or 1190384498 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 56.

The spelling of 688042228862 in words is "six hundred eighty-eight billion, forty-two million, two hundred twenty-eight thousand, eight hundred sixty-two".