26641287928 has 32 divisors (see below), whose sum is σ = 53414490960. Its totient is φ = 12412940800.

The previous prime is 26641287919. The next prime is 26641287961. The reversal of 26641287928 is 82978214662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956026 + ... + 983497.

Almost surely, 2^26641287928 is an apocalyptic number.

It is an amenable number.

26641287928 is an abundant number, since it is smaller than the sum of its proper divisors (26773203032).

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

26641287928 is a wasteful number, since it uses less digits than its factorization.

26641287928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939647 (or 1939643 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 55.

The spelling of 26641287928 in words is "twenty-six billion, six hundred forty-one million, two hundred eighty-seven thousand, nine hundred twenty-eight".