687099098322 has 486 divisors, whose sum is σ = 1996790652207. Its totient is φ = 170156173824.

The previous prime is 687099098321. The next prime is 687099098327. The reversal of 687099098322 is 223890990786.

It can be written as a sum of positive squares in 5 ways, for example, as 44550967041 + 642548131281 = 211071^2 + 801591^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=586131.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 687099098322.

It is not an unprimeable number, because it can be changed into a prime (687099098321) by changing a digit.

It is a polite number, since it can be written in 242 ways as a sum of consecutive naturals, for example, 6080522938 + ... + 6080523050.

Almost surely, 2^687099098322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 687099098322

687099098322 is an abundant number, since it is smaller than the sum of its proper divisors (1309691553885).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

687099098322 is a wasteful number, since it uses less digits than its factorization.

687099098322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 687099098322 in words is "six hundred eighty-seven billion, ninety-nine million, ninety-eight thousand, three hundred twenty-two".