26354461505431 has 4 divisors (see below), whose sum is σ = 26354802445192. Its totient is φ = 26354120565672.

The previous prime is 26354461505387. The next prime is 26354461505501. The reversal of 26354461505431 is 13450516445362.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26354461505431 - 2⁷ = 26354461505303 is a prime.

It is a super-2 number, since 2×26354461505431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26354461505831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170353905 + ... + 170508538.

It is an arithmetic number, because the mean of its divisors is an integer number (6588700611298).

Almost surely, 2^{26354461505431} is an apocalyptic number.

26354461505431 is a deficient number, since it is larger than the sum of its proper divisors (340939761).

26354461505431 is an equidigital number, since it uses as much as digits as its factorization.

26354461505431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340939760.

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 26354461505431 in words is "twenty-six trillion, three hundred fifty-four billion, four hundred sixty-one million, five hundred five thousand, four hundred thirty-one".