26447781395 has 16 divisors (see below), whose sum is σ = 36289322688. Its totient is φ = 18126581760.

The previous prime is 26447781383. The next prime is 26447781413. The reversal of 26447781395 is 59318774462.

It is not a de Polignac number, because 26447781395 - 2¹⁸ = 26447519251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26447781395.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116726 + ... + 257915.

It is an arithmetic number, because the mean of its divisors is an integer number (2268082668).

Almost surely, 2^26447781395 is an apocalyptic number.

26447781395 is a deficient number, since it is larger than the sum of its proper divisors (9841541293).

26447781395 is a wasteful number, since it uses less digits than its factorization.

26447781395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376670.

The product of its digits is 10160640, while the sum is 56.

The spelling of 26447781395 in words is "twenty-six billion, four hundred forty-seven million, seven hundred eighty-one thousand, three hundred ninety-five".