688901290887 has 8 divisors (see below), whose sum is σ = 918545790960. Its totient is φ = 459262159040.

The previous prime is 688901290871. The next prime is 688901290919. The reversal of 688901290887 is 788092109886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 688901290887 - 2⁴ = 688901290871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688901290807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1032414 + ... + 1563227.

It is an arithmetic number, because the mean of its divisors is an integer number (114818223870).

Almost surely, 2^688901290887 is an apocalyptic number.

688901290887 is a deficient number, since it is larger than the sum of its proper divisors (229644500073).

688901290887 is a wasteful number, since it uses less digits than its factorization.

688901290887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2684113.

The product of its (nonzero) digits is 27869184, while the sum is 66.

The spelling of 688901290887 in words is "six hundred eighty-eight billion, nine hundred one million, two hundred ninety thousand, eight hundred eighty-seven".