23440135848671 has 2 divisors, whose sum is σ = 23440135848672. Its totient is φ = 23440135848670.

The previous prime is 23440135848641. The next prime is 23440135848697. The reversal of 23440135848671 is 17684853104432.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23440135848671 - 2²² = 23440131654367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23440135848611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11720067924335 + 11720067924336.

It is an arithmetic number, because the mean of its divisors is an integer number (11720067924336).

Almost surely, 2^{23440135848671} is an apocalyptic number.

23440135848671 is a deficient number, since it is larger than the sum of its proper divisors (1).

23440135848671 is an equidigital number, since it uses as much as digits as its factorization.

23440135848671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15482880, while the sum is 56.

The spelling of 23440135848671 in words is "twenty-three trillion, four hundred forty billion, one hundred thirty-five million, eight hundred forty-eight thousand, six hundred seventy-one".