23835981007 has 4 divisors (see below), whose sum is σ = 24226734856. Its totient is φ = 23445227160.

The previous prime is 23835980981. The next prime is 23835981017. The reversal of 23835981007 is 70018953832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23835981007 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 (23835981017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195376833 + ... + 195376954.

It is an arithmetic number, because the mean of its divisors is an integer number (6056683714).

Almost surely, 2^23835981007 is an apocalyptic number.

23835981007 is a deficient number, since it is larger than the sum of its proper divisors (390753849).

23835981007 is an equidigital number, since it uses as much as digits as its factorization.

23835981007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390753848.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 23835981007 in words is "twenty-three billion, eight hundred thirty-five million, nine hundred eighty-one thousand, seven".