23843402391 has 32 divisors (see below), whose sum is σ = 32430908160. Its totient is φ = 15579648000.

The previous prime is 23843402383. The next prime is 23843402413. The reversal of 23843402391 is 19320434832.

It is not a de Polignac number, because 23843402391 - 2³ = 23843402383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23843402311) 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 31 ways as a sum of consecutive naturals, for example, 20678871 + ... + 20680023.

It is an arithmetic number, because the mean of its divisors is an integer number (1013465880).

Almost surely, 2^23843402391 is an apocalyptic number.

23843402391 is a deficient number, since it is larger than the sum of its proper divisors (8587505769).

23843402391 is a wasteful number, since it uses less digits than its factorization.

23843402391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887.

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 23843402391 in words is "twenty-three billion, eight hundred forty-three million, four hundred two thousand, three hundred ninety-one".