26129189575 has 12 divisors (see below), whose sum is σ = 32417244360. Its totient is φ = 20892352160.

The previous prime is 26129189539. The next prime is 26129189599. The reversal of 26129189575 is 57598192162.

It is a de Polignac number, because none of the positive numbers 2^k-26129189575 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 11 ways as a sum of consecutive naturals, for example, 226360 + ... + 321709.

It is an arithmetic number, because the mean of its divisors is an integer number (2701437030).

Almost surely, 2^26129189575 is an apocalyptic number.

26129189575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

26129189575 is a deficient number, since it is larger than the sum of its proper divisors (6288054785).

26129189575 is a wasteful number, since it uses less digits than its factorization.

26129189575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549986 (or 549981 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 55.

The spelling of 26129189575 in words is "twenty-six billion, one hundred twenty-nine million, one hundred eighty-nine thousand, five hundred seventy-five".