26449484761 has 4 divisors (see below), whose sum is σ = 30227982592. Its totient is φ = 22670986932.

The previous prime is 26449484741. The next prime is 26449484783. The reversal of 26449484761 is 16748494462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26449484761 - 2²¹ = 26447387609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26449484741) 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, 1889248905 + ... + 1889248918.

It is an arithmetic number, because the mean of its divisors is an integer number (7556995648).

Almost surely, 2^26449484761 is an apocalyptic number.

It is an amenable number.

26449484761 is a deficient number, since it is larger than the sum of its proper divisors (3778497831).

26449484761 is an equidigital number, since it uses as much as digits as its factorization.

26449484761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3778497830.

The product of its digits is 9289728, while the sum is 55.

The spelling of 26449484761 in words is "twenty-six billion, four hundred forty-nine million, four hundred eighty-four thousand, seven hundred sixty-one".