26616828451 has 4 divisors (see below), whose sum is σ = 26617178512. Its totient is φ = 26616478392.

The previous prime is 26616828443. The next prime is 26616828457. The reversal of 26616828451 is 15482861662.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 15482861662 = 2 ⋅7741430831.

It is a cyclic number.

It is not a de Polignac number, because 26616828451 - 2³ = 26616828443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26616828395 and 26616828404.

It is not an unprimeable number, because it can be changed into a prime (26616828457) 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, 7575 + ... + 230848.

It is an arithmetic number, because the mean of its divisors is an integer number (6654294628).

Almost surely, 2^26616828451 is an apocalyptic number.

26616828451 is a deficient number, since it is larger than the sum of its proper divisors (350061).

26616828451 is a wasteful number, since it uses less digits than its factorization.

26616828451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350060.

The product of its digits is 1105920, while the sum is 49.

The spelling of 26616828451 in words is "twenty-six billion, six hundred sixteen million, eight hundred twenty-eight thousand, four hundred fifty-one".