26345052639 has 12 divisors (see below), whose sum is σ = 39366171000. Its totient is φ = 16957734864.

The previous prime is 26345052607. The next prime is 26345052653. The reversal of 26345052639 is 93625054362.

26345052639 is a `hidden beast` number, since 2 + 6 + 3 + 4 + 5 + 0 + 5 + 2 + 639 = 666.

It is not a de Polignac number, because 26345052639 - 2⁵ = 26345052607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26345052594 and 26345052603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26345054639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50469189 + ... + 50469710.

It is an arithmetic number, because the mean of its divisors is an integer number (3280514250).

Almost surely, 2^26345052639 is an apocalyptic number.

26345052639 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

26345052639 is a deficient number, since it is larger than the sum of its proper divisors (13021118361).

26345052639 is a wasteful number, since it uses less digits than its factorization.

26345052639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100938934 (or 100938931 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 26345052639 in words is "twenty-six billion, three hundred forty-five million, fifty-two thousand, six hundred thirty-nine".