10398686658 has 16 divisors (see below), whose sum is σ = 21514524480. Its totient is φ = 3346703696.

The previous prime is 10398686647. The next prime is 10398686671. The reversal of 10398686658 is 85668689301.

It is a super-2 number, since 2×10398686658² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29881110 + ... + 29881457.

It is an arithmetic number, because the mean of its divisors is an integer number (1344657780).

Almost surely, 2^10398686658 is an apocalyptic number.

10398686658 is an abundant number, since it is smaller than the sum of its proper divisors (11115837822).

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

10398686658 is a wasteful number, since it uses less digits than its factorization.

10398686658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59762601.

The product of its (nonzero) digits is 14929920, while the sum is 60.

The spelling of 10398686658 in words is "ten billion, three hundred ninety-eight million, six hundred eighty-six thousand, six hundred fifty-eight".