26058566989 has 16 divisors (see below), whose sum is σ = 32103856512. Its totient is φ = 20597341248.

The previous prime is 26058566971. The next prime is 26058566999. The reversal of 26058566989 is 98966585062.

It is a cyclic number.

It is not a de Polignac number, because 26058566989 - 2¹¹ = 26058564941 is a prime.

It is a super-2 number, since 2×26058566989² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26058566989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26058566929) 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, 49159 + ... + 233524.

It is an arithmetic number, because the mean of its divisors is an integer number (2006491032).

Almost surely, 2^26058566989 is an apocalyptic number.

It is an amenable number.

26058566989 is a deficient number, since it is larger than the sum of its proper divisors (6045289523).

26058566989 is a wasteful number, since it uses less digits than its factorization.

26058566989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283716.

The product of its (nonzero) digits is 55987200, while the sum is 64.

The spelling of 26058566989 in words is "twenty-six billion, fifty-eight million, five hundred sixty-six thousand, nine hundred eighty-nine".