26142224161 has 2 divisors, whose sum is σ = 26142224162. Its totient is φ = 26142224160.

The previous prime is 26142224137. The next prime is 26142224177. The reversal of 26142224161 is 16142224162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16067083536 + 10075140625 = 126756^2 + 100375^2 .

It is a cyclic number.

It is not a de Polignac number, because 26142224161 - 2²¹ = 26140127009 is a prime.

It is not a weakly prime, because it can be changed into another prime (26142224561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13071112080 + 13071112081.

It is an arithmetic number, because the mean of its divisors is an integer number (13071112081).

Almost surely, 2^26142224161 is an apocalyptic number.

It is an amenable number.

26142224161 is a deficient number, since it is larger than the sum of its proper divisors (1).

26142224161 is an equidigital number, since it uses as much as digits as its factorization.

26142224161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 31.

Subtracting from 26142224161 its reverse (16142224162), we obtain a palindrome (9999999999).

The spelling of 26142224161 in words is "twenty-six billion, one hundred forty-two million, two hundred twenty-four thousand, one hundred sixty-one".