26431673153 has 2 divisors, whose sum is σ = 26431673154. Its totient is φ = 26431673152.

The previous prime is 26431673141. The next prime is 26431673171. The reversal of 26431673153 is 35137613462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26202544384 + 229128769 = 161872^2 + 15137^2 .

It is a cyclic number.

It is not a de Polignac number, because 26431673153 - 2¹² = 26431669057 is a prime.

It is a super-2 number, since 2×26431673153² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26431673153.

It is not a weakly prime, because it can be changed into another prime (26431673113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13215836576 + 13215836577.

It is an arithmetic number, because the mean of its divisors is an integer number (13215836577).

Almost surely, 2^26431673153 is an apocalyptic number.

It is an amenable number.

26431673153 is a deficient number, since it is larger than the sum of its proper divisors (1).

26431673153 is an equidigital number, since it uses as much as digits as its factorization.

26431673153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 41.

The spelling of 26431673153 in words is "twenty-six billion, four hundred thirty-one million, six hundred seventy-three thousand, one hundred fifty-three".