26461026663 has 16 divisors (see below), whose sum is σ = 35756708736. Its totient is φ = 17404250400.

The previous prime is 26461026653. The next prime is 26461026719. The reversal of 26461026663 is 36662016462.

It is not a de Polignac number, because 26461026663 - 2²⁰ = 26459978087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26461026623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68545 + ... + 240042.

It is an arithmetic number, because the mean of its divisors is an integer number (2234794296).

Almost surely, 2^26461026663 is an apocalyptic number.

26461026663 is a deficient number, since it is larger than the sum of its proper divisors (9295682073).

26461026663 is a wasteful number, since it uses less digits than its factorization.

26461026663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308974.

The product of its (nonzero) digits is 373248, while the sum is 42.

The spelling of 26461026663 in words is "twenty-six billion, four hundred sixty-one million, twenty-six thousand, six hundred sixty-three".