26902053641 has 4 divisors (see below), whose sum is σ = 26922796692. Its totient is φ = 26881310592.

The previous prime is 26902053617. The next prime is 26902053671. The reversal of 26902053641 is 14635020962.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23110080400 + 3791973241 = 152020^2 + 61579^2 .

It is a cyclic number.

It is not a de Polignac number, because 26902053641 - 2¹⁴ = 26902037257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26902053595 and 26902053604.

It is not an unprimeable number, because it can be changed into a prime (26902053671) 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, 10369580 + ... + 10372173.

It is an arithmetic number, because the mean of its divisors is an integer number (6730699173).

Almost surely, 2^26902053641 is an apocalyptic number.

It is an amenable number.

26902053641 is a deficient number, since it is larger than the sum of its proper divisors (20743051).

26902053641 is a wasteful number, since it uses less digits than its factorization.

26902053641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20743050.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 26902053641 in words is "twenty-six billion, nine hundred two million, fifty-three thousand, six hundred forty-one".