26540747553 has 8 divisors (see below), whose sum is σ = 35480060928. Its totient is φ = 17647632944.

The previous prime is 26540747501. The next prime is 26540747593. The reversal of 26540747553 is 35574704562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26540747553 - 2¹² = 26540743457 is a prime.

It is a super-2 number, since 2×26540747553² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26540747593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11548350 + ... + 11550647.

It is an arithmetic number, because the mean of its divisors is an integer number (4435007616).

Almost surely, 2^26540747553 is an apocalyptic number.

It is an amenable number.

26540747553 is a deficient number, since it is larger than the sum of its proper divisors (8939313375).

26540747553 is a wasteful number, since it uses less digits than its factorization.

26540747553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23099383.

The product of its (nonzero) digits is 3528000, while the sum is 48.

The spelling of 26540747553 in words is "twenty-six billion, five hundred forty million, seven hundred forty-seven thousand, five hundred fifty-three".