26172842146 has 32 divisors (see below), whose sum is σ = 44268327360. Its totient is φ = 11503348800.

The previous prime is 26172842141. The next prime is 26172842173. The reversal of 26172842146 is 64124827162.

It is not an unprimeable number, because it can be changed into a prime (26172842141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86101 + ... + 244456.

It is an arithmetic number, because the mean of its divisors is an integer number (1383385230).

Almost surely, 2^26172842146 is an apocalyptic number.

26172842146 is a deficient number, since it is larger than the sum of its proper divisors (18095485214).

26172842146 is a wasteful number, since it uses less digits than its factorization.

26172842146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330690.

The product of its digits is 258048, while the sum is 43.

The spelling of 26172842146 in words is "twenty-six billion, one hundred seventy-two million, eight hundred forty-two thousand, one hundred forty-six".