688153521245 has 32 divisors (see below), whose sum is σ = 876974563584. Its totient is φ = 517302720000.

The previous prime is 688153521217. The next prime is 688153521311. The reversal of 688153521245 is 542125351886.

It is not a de Polignac number, because 688153521245 - 2¹⁶ = 688153455709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 688153521193 and 688153521202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1943855 + ... + 2270435.

It is an arithmetic number, because the mean of its divisors is an integer number (27405455112).

Almost surely, 2^688153521245 is an apocalyptic number.

It is an amenable number.

688153521245 is a deficient number, since it is larger than the sum of its proper divisors (188821042339).

688153521245 is a wasteful number, since it uses less digits than its factorization.

688153521245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326933.

The product of its digits is 2304000, while the sum is 50.

The spelling of 688153521245 in words is "six hundred eighty-eight billion, one hundred fifty-three million, five hundred twenty-one thousand, two hundred forty-five".