23444506601491 has 2 divisors, whose sum is σ = 23444506601492. Its totient is φ = 23444506601490.

The previous prime is 23444506601441. The next prime is 23444506601561. The reversal of 23444506601491 is 19410660544432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23444506601491 - 2²⁹ = 23443969730579 is a prime.

It is not a weakly prime, because it can be changed into another prime (23444506601401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11722253300745 + 11722253300746.

It is an arithmetic number, because the mean of its divisors is an integer number (11722253300746).

Almost surely, 2^{23444506601491} is an apocalyptic number.

23444506601491 is a deficient number, since it is larger than the sum of its proper divisors (1).

23444506601491 is an equidigital number, since it uses as much as digits as its factorization.

23444506601491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 23444506601491 in words is "twenty-three trillion, four hundred forty-four billion, five hundred six million, six hundred one thousand, four hundred ninety-one".