26144728511 has 8 divisors (see below), whose sum is σ = 28594846800. Its totient is φ = 23706831040.

The previous prime is 26144728487. The next prime is 26144728531. The reversal of 26144728511 is 11582744162.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26144728511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26144728531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3050726 + ... + 3059283.

It is an arithmetic number, because the mean of its divisors is an integer number (3574355850).

Almost surely, 2^26144728511 is an apocalyptic number.

26144728511 is a deficient number, since it is larger than the sum of its proper divisors (2450118289).

26144728511 is a wasteful number, since it uses less digits than its factorization.

26144728511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110409.

The product of its digits is 107520, while the sum is 41.

The spelling of 26144728511 in words is "twenty-six billion, one hundred forty-four million, seven hundred twenty-eight thousand, five hundred eleven".