26340342125499 has 24 divisors (see below), whose sum is σ = 39077705166032. Its totient is φ = 17084646722880.

The previous prime is 26340342125479. The next prime is 26340342125519. The reversal of 26340342125499 is 99452124304362.

It is a happy number.

26340342125499 is a `hidden beast` number, since 2 + 6 + 3 + 40 + 3 + 42 + 12 + 549 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (26340342125479) and next prime (26340342125519).

It is not a de Polignac number, because 26340342125499 - 2⁷ = 26340342125371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26340342125479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3563337 + ... + 8085669.

Almost surely, 2^{26340342125499} is an apocalyptic number.

26340342125499 is a deficient number, since it is larger than the sum of its proper divisors (12737363040533).

26340342125499 is a wasteful number, since it uses less digits than its factorization.

26340342125499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4539867 (or 4539864 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 26340342125499 in words is "twenty-six trillion, three hundred forty billion, three hundred forty-two million, one hundred twenty-five thousand, four hundred ninety-nine".