26998635928 has 32 divisors (see below), whose sum is σ = 57625551360. Its totient is φ = 11738536480.

The previous prime is 26998635913. The next prime is 26998635943. The reversal of 26998635928 is 82953689962.

It is an interprime number because it is at equal distance from previous prime (26998635913) and next prime (26998635943).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6667600 + ... + 6671647.

It is an arithmetic number, because the mean of its divisors is an integer number (1800798480).

Almost surely, 2^26998635928 is an apocalyptic number.

It is an amenable number.

26998635928 is an abundant number, since it is smaller than the sum of its proper divisors (30626915432).

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

26998635928 is a wasteful number, since it uses less digits than its factorization.

26998635928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13339287 (or 13339283 counting only the distinct ones).

The product of its digits is 100776960, while the sum is 67.

The spelling of 26998635928 in words is "twenty-six billion, nine hundred ninety-eight million, six hundred thirty-five thousand, nine hundred twenty-eight".