26487464293 has 2 divisors, whose sum is σ = 26487464294. Its totient is φ = 26487464292.

The previous prime is 26487464279. The next prime is 26487464417. The reversal of 26487464293 is 39246478462.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22160192769 + 4327271524 = 148863^2 + 65782^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26487464293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26487464093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13243732146 + 13243732147.

It is an arithmetic number, because the mean of its divisors is an integer number (13243732147).

Almost surely, 2^26487464293 is an apocalyptic number.

It is an amenable number.

26487464293 is a deficient number, since it is larger than the sum of its proper divisors (1).

26487464293 is an equidigital number, since it uses as much as digits as its factorization.

26487464293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13934592, while the sum is 55.

The spelling of 26487464293 in words is "twenty-six billion, four hundred eighty-seven million, four hundred sixty-four thousand, two hundred ninety-three".