23648198857 has 32 divisors (see below), whose sum is σ = 27087540480. Its totient is φ = 20510730240.

The previous prime is 23648198839. The next prime is 23648198867. The reversal of 23648198857 is 75889184632.

It is not a de Polignac number, because 23648198857 - 2¹¹ = 23648196809 is a prime.

It is a super-2 number, since 2×23648198857² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23648198795 and 23648198804.

It is not an unprimeable number, because it can be changed into a prime (23648198867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5905618 + ... + 5909620.

It is an arithmetic number, because the mean of its divisors is an integer number (846485640).

Almost surely, 2^23648198857 is an apocalyptic number.

It is an amenable number.

23648198857 is a deficient number, since it is larger than the sum of its proper divisors (3439341623).

23648198857 is a wasteful number, since it uses less digits than its factorization.

23648198857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4593.

The product of its digits is 23224320, while the sum is 61.

The spelling of 23648198857 in words is "twenty-three billion, six hundred forty-eight million, one hundred ninety-eight thousand, eight hundred fifty-seven".