688051223025 has 12 divisors (see below), whose sum is σ = 1137578022192. Its totient is φ = 366960652240.

The previous prime is 688051223017. The next prime is 688051223059. The reversal of 688051223025 is 520322150886.

It is a happy number.

It is not a de Polignac number, because 688051223025 - 2³ = 688051223017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4587008079 + ... + 4587008228.

It is an arithmetic number, because the mean of its divisors is an integer number (94798168516).

Almost surely, 2^688051223025 is an apocalyptic number.

It is an amenable number.

688051223025 is a deficient number, since it is larger than the sum of its proper divisors (449526799167).

688051223025 is a wasteful number, since it uses less digits than its factorization.

688051223025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9174016320 (or 9174016315 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 688051223025 in words is "six hundred eighty-eight billion, fifty-one million, two hundred twenty-three thousand, twenty-five".