26147897187 has 8 divisors (see below), whose sum is σ = 34894912704. Its totient is φ = 17416406568.

The previous prime is 26147897179. The next prime is 26147897189. The reversal of 26147897187 is 78179874162.

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

It is not a de Polignac number, because 26147897187 - 2³ = 26147897179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26147897187.

It is not an unprimeable number, because it can be changed into a prime (26147897189) 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, 3877293 + ... + 3884030.

It is an arithmetic number, because the mean of its divisors is an integer number (4361864088).

Almost surely, 2^26147897187 is an apocalyptic number.

26147897187 is a deficient number, since it is larger than the sum of its proper divisors (8747015517).

26147897187 is a wasteful number, since it uses less digits than its factorization.

26147897187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7762449.

The product of its digits is 9483264, while the sum is 60.

The spelling of 26147897187 in words is "twenty-six billion, one hundred forty-seven million, eight hundred ninety-seven thousand, one hundred eighty-seven".