26172432001 has 2 divisors, whose sum is σ = 26172432002. Its totient is φ = 26172432000.

The previous prime is 26172431983. The next prime is 26172432109. The reversal of 26172432001 is 10023427162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25945477776 + 226954225 = 161076^2 + 15065^2 .

It is a cyclic number.

It is not a de Polignac number, because 26172432001 - 2¹¹ = 26172429953 is a prime.

It is not a weakly prime, because it can be changed into another prime (26172436001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13086216000 + 13086216001.

It is an arithmetic number, because the mean of its divisors is an integer number (13086216001).

Almost surely, 2^26172432001 is an apocalyptic number.

It is an amenable number.

26172432001 is a deficient number, since it is larger than the sum of its proper divisors (1).

26172432001 is an equidigital number, since it uses as much as digits as its factorization.

26172432001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 26172432001 its reverse (10023427162), we get a palindrome (36195859163).

The spelling of 26172432001 in words is "twenty-six billion, one hundred seventy-two million, four hundred thirty-two thousand, one".