26728418454 has 64 divisors (see below), whose sum is σ = 57030946560. Its totient is φ = 8326765440.

The previous prime is 26728418413. The next prime is 26728418467. The reversal of 26728418454 is 45481482762.

It is a junction number, because it is equal to n+sod(n) for n = 26728418397 and 26728418406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8296564 + ... + 8299784.

It is an arithmetic number, because the mean of its divisors is an integer number (891108540).

Almost surely, 2^26728418454 is an apocalyptic number.

26728418454 is an abundant number, since it is smaller than the sum of its proper divisors (30302528106).

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

26728418454 is a wasteful number, since it uses less digits than its factorization.

26728418454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4205.

The product of its digits is 3440640, while the sum is 51.

The spelling of 26728418454 in words is "twenty-six billion, seven hundred twenty-eight million, four hundred eighteen thousand, four hundred fifty-four".