26889537971 has 16 divisors (see below), whose sum is σ = 27382508160. Its totient is φ = 26401152960.

The previous prime is 26889537943. The next prime is 26889537973. The reversal of 26889537971 is 17973598862.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26889537971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26889537898 and 26889537907.

It is not an unprimeable number, because it can be changed into a prime (26889537973) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9844676 + ... + 9847406.

It is an arithmetic number, because the mean of its divisors is an integer number (1711406760).

Almost surely, 2^26889537971 is an apocalyptic number.

26889537971 is a deficient number, since it is larger than the sum of its proper divisors (492970189).

26889537971 is a wasteful number, since it uses less digits than its factorization.

26889537971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506.

The product of its digits is 45722880, while the sum is 65.

The spelling of 26889537971 in words is "twenty-six billion, eight hundred eighty-nine million, five hundred thirty-seven thousand, nine hundred seventy-one".