23405461131643 has 8 divisors (see below), whose sum is σ = 23469224763600. Its totient is φ = 23341735135488.

The previous prime is 23405461131617. The next prime is 23405461131659. The reversal of 23405461131643 is 34613116450432.

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-23405461131643 is a prime.

It is a super-2 number, since 2×23405461131643² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23405461131643.

It is not an unprimeable number, because it can be changed into a prime (23405461131683) 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, 8163246 + ... + 10651267.

It is an arithmetic number, because the mean of its divisors is an integer number (2933653095450).

Almost surely, 2^{23405461131643} is an apocalyptic number.

23405461131643 is a deficient number, since it is larger than the sum of its proper divisors (63763631957).

23405461131643 is a wasteful number, since it uses less digits than its factorization.

23405461131643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18817901.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 23405461131643 in words is "twenty-three trillion, four hundred five billion, four hundred sixty-one million, one hundred thirty-one thousand, six hundred forty-three".