26811013428 has 36 divisors (see below), whose sum is σ = 70718907168. Its totient is φ = 8548438800.

The previous prime is 26811013423. The next prime is 26811013447. The reversal of 26811013428 is 82431011862.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×26811013428² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 26811013392 and 26811013401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26811013423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16189398 + ... + 16191053.

It is an arithmetic number, because the mean of its divisors is an integer number (1964414088).

Almost surely, 2^26811013428 is an apocalyptic number.

It is an amenable number.

26811013428 is an abundant number, since it is smaller than the sum of its proper divisors (43907893740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26811013428 is a wasteful number, since it uses less digits than its factorization.

26811013428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32380484 (or 32380479 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 26811013428 in words is "twenty-six billion, eight hundred eleven million, thirteen thousand, four hundred twenty-eight".