26550944121 has 16 divisors (see below), whose sum is σ = 38133462080. Its totient is φ = 16335172800.

The previous prime is 26550944107. The next prime is 26550944129. The reversal of 26550944121 is 12144905562.

It is not a de Polignac number, because 26550944121 - 2⁹ = 26550943609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26550944121.

It is not an unprimeable number, because it can be changed into a prime (26550944129) 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, 90771 + ... + 247671.

It is an arithmetic number, because the mean of its divisors is an integer number (2383341380).

Almost surely, 2^26550944121 is an apocalyptic number.

It is an amenable number.

26550944121 is a deficient number, since it is larger than the sum of its proper divisors (11582517959).

26550944121 is a wasteful number, since it uses less digits than its factorization.

26550944121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161256.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 26550944121 in words is "twenty-six billion, five hundred fifty million, nine hundred forty-four thousand, one hundred twenty-one".