688882638115 has 16 divisors (see below), whose sum is σ = 946001391552. Its totient is φ = 471752636544.

The previous prime is 688882638113. The next prime is 688882638121. The reversal of 688882638115 is 511836288886.

It is not a de Polignac number, because 688882638115 - 2¹ = 688882638113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (688882638113) 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, 12973744 + ... + 13026733.

It is an arithmetic number, because the mean of its divisors is an integer number (59125086972).

Almost surely, 2^688882638115 is an apocalyptic number.

688882638115 is a deficient number, since it is larger than the sum of its proper divisors (257118753437).

688882638115 is a wasteful number, since it uses less digits than its factorization.

688882638115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26001246.

The product of its digits is 35389440, while the sum is 64.

The spelling of 688882638115 in words is "six hundred eighty-eight billion, eight hundred eighty-two million, six hundred thirty-eight thousand, one hundred fifteen".