26211320647 has 16 divisors (see below), whose sum is σ = 29138715360. Its totient is φ = 23463272448.

The previous prime is 26211320593. The next prime is 26211320687. The reversal of 26211320647 is 74602311262.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26211320647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26211320687) 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, 363738 + ... + 429799.

It is an arithmetic number, because the mean of its divisors is an integer number (1821169710).

Almost surely, 2^26211320647 is an apocalyptic number.

26211320647 is a deficient number, since it is larger than the sum of its proper divisors (2927394713).

26211320647 is a wasteful number, since it uses less digits than its factorization.

26211320647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793650.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 26211320647 in words is "twenty-six billion, two hundred eleven million, three hundred twenty thousand, six hundred forty-seven".