26307339887 has 8 divisors (see below), whose sum is σ = 27104894640. Its totient is φ = 25521600960.

The previous prime is 26307339857. The next prime is 26307339889. The reversal of 26307339887 is 78893370362.

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 26307339887 - 2²⁰ = 26306291311 is a prime.

It is a super-2 number, since 2×26307339887² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26307339889) 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, 2949437 + ... + 2958342.

It is an arithmetic number, because the mean of its divisors is an integer number (3388111830).

Almost surely, 2^26307339887 is an apocalyptic number.

26307339887 is a deficient number, since it is larger than the sum of its proper divisors (797554753).

26307339887 is an equidigital number, since it uses as much as digits as its factorization.

26307339887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5907913.

The product of its (nonzero) digits is 9144576, while the sum is 56.

The spelling of 26307339887 in words is "twenty-six billion, three hundred seven million, three hundred thirty-nine thousand, eight hundred eighty-seven".