26500000138748 has 24 divisors (see below), whose sum is σ = 48397486949280. Its totient is φ = 12672293923520.

The previous prime is 26500000138747. The next prime is 26500000138769. The reversal of 26500000138748 is 84783100000562.

It is a junction number, because it is equal to n+sod(n) for n = 26500000138699 and 26500000138708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26500000138747) 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, 17675663 + ... + 19116198.

It is an arithmetic number, because the mean of its divisors is an integer number (2016561956220).

Almost surely, 2^{26500000138748} is an apocalyptic number.

It is an amenable number.

26500000138748 is a deficient number, since it is larger than the sum of its proper divisors (21897486810532).

26500000138748 is a wasteful number, since it uses less digits than its factorization.

26500000138748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36799717 (or 36799715 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 26500000138748 in words is "twenty-six trillion, five hundred billion, one hundred thirty-eight thousand, seven hundred forty-eight".