13623907698 has 32 divisors (see below), whose sum is σ = 30393184320. Its totient is φ = 4523627520.

The previous prime is 13623907697. The next prime is 13623907723. The reversal of 13623907698 is 89670932631.

13623907698 is a `hidden beast` number, since 1 + 3 + 623 + 9 + 0 + 7 + 6 + 9 + 8 = 666.

It is a super-2 number, since 2×13623907698² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (13623907697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476968 + ... + 504723.

It is an arithmetic number, because the mean of its divisors is an integer number (949787010).

Almost surely, 2^13623907698 is an apocalyptic number.

13623907698 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13623907698 is an abundant number, since it is smaller than the sum of its proper divisors (16769276622).

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

13623907698 is a wasteful number, since it uses less digits than its factorization.

13623907698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981959 (or 981953 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 13623907698 in words is "thirteen billion, six hundred twenty-three million, nine hundred seven thousand, six hundred ninety-eight".