23940257911 has 8 divisors (see below), whose sum is σ = 24063005664. Its totient is φ = 23817805440.

The previous prime is 23940257899. The next prime is 23940257959. The reversal of 23940257911 is 11975204932.

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 23940257911 - 2²³ = 23931869303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23940257981) 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, 89670 + ... + 236476.

It is an arithmetic number, because the mean of its divisors is an integer number (3007875708).

Almost surely, 2^23940257911 is an apocalyptic number.

23940257911 is a deficient number, since it is larger than the sum of its proper divisors (122747753).

23940257911 is a wasteful number, since it uses less digits than its factorization.

23940257911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147641.

The product of its (nonzero) digits is 136080, while the sum is 43.

The spelling of 23940257911 in words is "twenty-three billion, nine hundred forty million, two hundred fifty-seven thousand, nine hundred eleven".