26791989087 has 8 divisors (see below), whose sum is σ = 36482708736. Its totient is φ = 17481297752.

The previous prime is 26791989061. The next prime is 26791989101. The reversal of 26791989087 is 78098919762.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26791989087 - 2⁶ = 26791989023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26791989187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95006913 + ... + 95007194.

It is an arithmetic number, because the mean of its divisors is an integer number (4560338592).

Almost surely, 2^26791989087 is an apocalyptic number.

26791989087 is a deficient number, since it is larger than the sum of its proper divisors (9690719649).

26791989087 is a wasteful number, since it uses less digits than its factorization.

26791989087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190014157.

The product of its (nonzero) digits is 27433728, while the sum is 66.

The spelling of 26791989087 in words is "twenty-six billion, seven hundred ninety-one million, nine hundred eighty-nine thousand, eighty-seven".