26389270028 has 48 divisors (see below), whose sum is σ = 51029909280. Its totient is φ = 11840716800.

The previous prime is 26389270021. The next prime is 26389270043. The reversal of 26389270028 is 82007298362.

It is a super-2 number, since 2×26389270028² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26389270021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2504900 + ... + 2515412.

It is an arithmetic number, because the mean of its divisors is an integer number (1063123110).

Almost surely, 2^26389270028 is an apocalyptic number.

It is an amenable number.

26389270028 is a deficient number, since it is larger than the sum of its proper divisors (24640639252).

26389270028 is a wasteful number, since it uses less digits than its factorization.

26389270028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11258 (or 11256 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 26389270028 in words is "twenty-six billion, three hundred eighty-nine million, two hundred seventy thousand, twenty-eight".