23515168949 has 8 divisors (see below), whose sum is σ = 25219844640. Its totient is φ = 21857196816.

The previous prime is 23515168907. The next prime is 23515168967. The reversal of 23515168949 is 94986151532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23515168949 - 2⁸ = 23515168693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23515168949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23515168969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11674847 + ... + 11676860.

It is an arithmetic number, because the mean of its divisors is an integer number (3152480580).

Almost surely, 2^23515168949 is an apocalyptic number.

It is an amenable number.

23515168949 is a deficient number, since it is larger than the sum of its proper divisors (1704675691).

23515168949 is a wasteful number, since it uses less digits than its factorization.

23515168949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23351779.

The product of its digits is 2332800, while the sum is 53.

The spelling of 23515168949 in words is "twenty-three billion, five hundred fifteen million, one hundred sixty-eight thousand, nine hundred forty-nine".