806400256424 has 16 divisors (see below), whose sum is σ = 1728000549600. Its totient is φ = 345600109872.

The previous prime is 806400256423. The next prime is 806400256427. The reversal of 806400256424 is 424652004608.

806400256424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (806400256423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7200002234 + ... + 7200002345.

It is an arithmetic number, because the mean of its divisors is an integer number (108000034350).

Almost surely, 2^806400256424 is an apocalyptic number.

It is an amenable number.

806400256424 is an abundant number, since it is smaller than the sum of its proper divisors (921600293176).

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

806400256424 is a wasteful number, since it uses less digits than its factorization.

806400256424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14400004592 (or 14400004588 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 41.

The spelling of 806400256424 in words is "eight hundred six billion, four hundred million, two hundred fifty-six thousand, four hundred twenty-four".