698649613722 has 24 divisors (see below), whose sum is σ = 1514211499476. Its totient is φ = 232810793856.

The previous prime is 698649613693. The next prime is 698649613723. The reversal of 698649613722 is 227316946896.

698649613722 is a `hidden beast` number, since 6 + 9 + 8 + 6 + 4 + 9 + 613 + 7 + 2 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 581773833081 + 116875780641 = 762741^2 + 341871^2 .

It is a super-2 number, since 2×698649613722² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 698649613722.

It is not an unprimeable number, because it can be changed into a prime (698649613723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5974713 + ... + 6090524.

Almost surely, 2^698649613722 is an apocalyptic number.

698649613722 is an abundant number, since it is smaller than the sum of its proper divisors (815561885754).

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

698649613722 is a wasteful number, since it uses less digits than its factorization.

698649613722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12068462 (or 12068459 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 63.

The spelling of 698649613722 in words is "six hundred ninety-eight billion, six hundred forty-nine million, six hundred thirteen thousand, seven hundred twenty-two".