26400140137765 has 16 divisors (see below), whose sum is σ = 32470798325760. Its totient is φ = 20598662629440.

The previous prime is 26400140137757. The next prime is 26400140137823. The reversal of 26400140137765 is 56773104100462.

It is not a de Polignac number, because 26400140137765 - 2³ = 26400140137757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352293246 + ... + 352368175.

It is an arithmetic number, because the mean of its divisors is an integer number (2029424895360).

Almost surely, 2^{26400140137765} is an apocalyptic number.

It is an amenable number.

26400140137765 is a deficient number, since it is larger than the sum of its proper divisors (6070658187995).

26400140137765 is a wasteful number, since it uses less digits than its factorization.

26400140137765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704661612.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 26400140137765 in words is "twenty-six trillion, four hundred billion, one hundred forty million, one hundred thirty-seven thousand, seven hundred sixty-five".