26374946513 has 2 divisors, whose sum is σ = 26374946514. Its totient is φ = 26374946512.

The previous prime is 26374946503. The next prime is 26374946527. The reversal of 26374946513 is 31564947362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24961788049 + 1413158464 = 157993^2 + 37592^2 .

It is a cyclic number.

It is not a de Polignac number, because 26374946513 - 2²⁶ = 26307837649 is a prime.

It is a super-2 number, since 2×26374946513² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26374946503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13187473256 + 13187473257.

It is an arithmetic number, because the mean of its divisors is an integer number (13187473257).

Almost surely, 2^26374946513 is an apocalyptic number.

It is an amenable number.

26374946513 is a deficient number, since it is larger than the sum of its proper divisors (1).

26374946513 is an equidigital number, since it uses as much as digits as its factorization.

26374946513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 50.

The spelling of 26374946513 in words is "twenty-six billion, three hundred seventy-four million, nine hundred forty-six thousand, five hundred thirteen".