26006432291 has 4 divisors (see below), whose sum is σ = 29721636912. Its totient is φ = 22291227672.

The previous prime is 26006432273. The next prime is 26006432339. The reversal of 26006432291 is 19223460062.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-26006432291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26006432201) 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, 1857602300 + ... + 1857602313.

It is an arithmetic number, because the mean of its divisors is an integer number (7430409228).

Almost surely, 2^26006432291 is an apocalyptic number.

26006432291 is a deficient number, since it is larger than the sum of its proper divisors (3715204621).

26006432291 is an equidigital number, since it uses as much as digits as its factorization.

26006432291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715204620.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 26006432291 in words is "twenty-six billion, six million, four hundred thirty-two thousand, two hundred ninety-one".