26865709912 has 16 divisors (see below), whose sum is σ = 52563345840. Its totient is φ = 12848817696.

The previous prime is 26865709877. The next prime is 26865709919. The reversal of 26865709912 is 21990756862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26865709919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73004463 + ... + 73004830.

It is an arithmetic number, because the mean of its divisors is an integer number (3285209115).

Almost surely, 2^26865709912 is an apocalyptic number.

It is an amenable number.

26865709912 is a deficient number, since it is larger than the sum of its proper divisors (25697635928).

26865709912 is a wasteful number, since it uses less digits than its factorization.

26865709912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146009322 (or 146009318 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 26865709912 in words is "twenty-six billion, eight hundred sixty-five million, seven hundred nine thousand, nine hundred twelve".