26481972955 has 16 divisors (see below), whose sum is σ = 33657436224. Its totient is φ = 19933588480.

The previous prime is 26481972953. The next prime is 26481972971. The reversal of 26481972955 is 55927918462.

It is a happy number.

It is not a de Polignac number, because 26481972955 - 2¹ = 26481972953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26481972955.

It is not an unprimeable number, because it can be changed into a prime (26481972953) 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, 262050 + ... + 348760.

It is an arithmetic number, because the mean of its divisors is an integer number (2103589764).

Almost surely, 2^26481972955 is an apocalyptic number.

26481972955 is a deficient number, since it is larger than the sum of its proper divisors (7175463269).

26481972955 is a wasteful number, since it uses less digits than its factorization.

26481972955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90326.

The product of its digits is 10886400, while the sum is 58.

The spelling of 26481972955 in words is "twenty-six billion, four hundred eighty-one million, nine hundred seventy-two thousand, nine hundred fifty-five".