6434038986 has 32 divisors (see below), whose sum is σ = 13268888640. Its totient is φ = 2078853504.

The previous prime is 6434038979. The next prime is 6434038993. The reversal of 6434038986 is 6898304346.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6434038979) and next prime (6434038993).

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, 95491 + ... + 148278.

It is an arithmetic number, because the mean of its divisors is an integer number (414652770).

Almost surely, 2^6434038986 is an apocalyptic number.

6434038986 is an abundant number, since it is smaller than the sum of its proper divisors (6834849654).

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

6434038986 is a wasteful number, since it uses less digits than its factorization.

6434038986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243910.

The product of its (nonzero) digits is 2985984, while the sum is 51.

The square root of 6434038986 is about 80212.4615380927. The cubic root of 6434038986 is about 1859.9212771630.

The spelling of 6434038986 in words is "six billion, four hundred thirty-four million, thirty-eight thousand, nine hundred eighty-six".