23947469281 has 8 divisors (see below), whose sum is σ = 24461230464. Its totient is φ = 23433884880.

The previous prime is 23947469267. The next prime is 23947469303. The reversal of 23947469281 is 18296474932.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23947469281 is a prime.

It is a super-2 number, since 2×23947469281² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23947469251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250471 + ... + 332611.

It is an arithmetic number, because the mean of its divisors is an integer number (3057653808).

Almost surely, 2^23947469281 is an apocalyptic number.

It is an amenable number.

23947469281 is a deficient number, since it is larger than the sum of its proper divisors (513761183).

23947469281 is an equidigital number, since it uses as much as digits as its factorization.

23947469281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88391.

The product of its digits is 5225472, while the sum is 55.

The spelling of 23947469281 in words is "twenty-three billion, nine hundred forty-seven million, four hundred sixty-nine thousand, two hundred eighty-one".