23109849215 has 16 divisors (see below), whose sum is σ = 29396302272. Its totient is φ = 17380683264.

The previous prime is 23109849211. The next prime is 23109849227. The reversal of 23109849215 is 51294890132.

It is a cyclic number.

It is not a de Polignac number, because 23109849215 - 2² = 23109849211 is a prime.

It is a super-2 number, since 2×23109849215² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23109849211) 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, 77864 + ... + 228653.

It is an arithmetic number, because the mean of its divisors is an integer number (1837268892).

Almost surely, 2^23109849215 is an apocalyptic number.

23109849215 is a deficient number, since it is larger than the sum of its proper divisors (6286453057).

23109849215 is a wasteful number, since it uses less digits than its factorization.

23109849215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307426.

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 23109849215 in words is "twenty-three billion, one hundred nine million, eight hundred forty-nine thousand, two hundred fifteen".