8426391936 has 32 divisors (see below), whose sum is σ = 22382604600. Its totient is φ = 2808797184.

The previous prime is 8426391917. The next prime is 8426391991. The reversal of 8426391936 is 6391936248.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10971481 + ... + 10972248.

Almost surely, 2^8426391936 is an apocalyptic number.

It is an amenable number.

8426391936 is an abundant number, since it is smaller than the sum of its proper divisors (13956212664).

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

8426391936 is a wasteful number, since it uses less digits than its factorization.

8426391936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21943746 (or 21943734 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 51.

The square root of 8426391936 is about 91795.3807988180. The cubic root of 8426391936 is about 2034.9194297476.

The spelling of 8426391936 in words is "eight billion, four hundred twenty-six million, three hundred ninety-one thousand, nine hundred thirty-six".