26617545427 has 8 divisors (see below), whose sum is σ = 29145270960. Its totient is φ = 24107811360.

The previous prime is 26617545389. The next prime is 26617545443. The reversal of 26617545427 is 72454571662.

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 26617545427 - 2⁷ = 26617545299 is a prime.

It is a super-2 number, since 2×26617545427² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26617545457) 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, 4494768 + ... + 4500685.

It is an arithmetic number, because the mean of its divisors is an integer number (3643158870).

Almost surely, 2^26617545427 is an apocalyptic number.

26617545427 is a deficient number, since it is larger than the sum of its proper divisors (2527725533).

26617545427 is a wasteful number, since it uses less digits than its factorization.

26617545427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8995733.

The product of its digits is 2822400, while the sum is 49.

The spelling of 26617545427 in words is "twenty-six billion, six hundred seventeen million, five hundred forty-five thousand, four hundred twenty-seven".