26894999424 has 128 divisors (see below), whose sum is σ = 71962020000. Its totient is φ = 8899788800.

The previous prime is 26894999399. The next prime is 26894999431. The reversal of 26894999424 is 42499949862.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59899552 + ... + 59900000.

Almost surely, 2^26894999424 is an apocalyptic number.

26894999424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26894999424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35981010000).

26894999424 is an abundant number, since it is smaller than the sum of its proper divisors (45067020576).

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

26894999424 is a wasteful number, since it uses less digits than its factorization.

26894999424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256 (or 1244 counting only the distinct ones).

The product of its digits is 80621568, while the sum is 66.

The spelling of 26894999424 in words is "twenty-six billion, eight hundred ninety-four million, nine hundred ninety-nine thousand, four hundred twenty-four".