26264143661 has 8 divisors (see below), whose sum is σ = 30017166144. Its totient is φ = 22511371680.

The previous prime is 26264143657. The next prime is 26264143673. The reversal of 26264143661 is 16634146262.

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

It is not a de Polignac number, because 26264143661 - 2² = 26264143657 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26264143691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309401 + ... + 385041.

It is an arithmetic number, because the mean of its divisors is an integer number (3752145768).

Almost surely, 2^26264143661 is an apocalyptic number.

It is an amenable number.

26264143661 is a deficient number, since it is larger than the sum of its proper divisors (3753022483).

26264143661 is an equidigital number, since it uses as much as digits as its factorization.

26264143661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125251.

The product of its digits is 248832, while the sum is 41.

The spelling of 26264143661 in words is "twenty-six billion, two hundred sixty-four million, one hundred forty-three thousand, six hundred sixty-one".