26986459512 has 32 divisors (see below), whose sum is σ = 69642478080. Its totient is φ = 8705309280.

The previous prime is 26986459499. The next prime is 26986459517. The reversal of 26986459512 is 21595468962.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26986459517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18135318 + ... + 18136805.

It is an arithmetic number, because the mean of its divisors is an integer number (2176327440).

Almost surely, 2^26986459512 is an apocalyptic number.

It is an amenable number.

26986459512 is an abundant number, since it is smaller than the sum of its proper divisors (42656018568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26986459512 is a wasteful number, since it uses less digits than its factorization.

26986459512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36272163 (or 36272159 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 57.

The spelling of 26986459512 in words is "twenty-six billion, nine hundred eighty-six million, four hundred fifty-nine thousand, five hundred twelve".