6401535306 has 32 divisors (see below), whose sum is σ = 13373130240. Its totient is φ = 2039021424.

The previous prime is 6401535277. The next prime is 6401535311. The reversal of 6401535306 is 6035351046.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117861 + ... + 163383.

It is an arithmetic number, because the mean of its divisors is an integer number (417910320).

Almost surely, 2^6401535306 is an apocalyptic number.

6401535306 is an abundant number, since it is smaller than the sum of its proper divisors (6971594934).

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

6401535306 is a wasteful number, since it uses less digits than its factorization.

6401535306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46570.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 6401535306 is about 80009.5950870894. The cubic root of 6401535306 is about 1856.7839853080.

The spelling of 6401535306 in words is "six billion, four hundred one million, five hundred thirty-five thousand, three hundred six".