6454138586 has 24 divisors (see below), whose sum is σ = 11566193076. Its totient is φ = 2691299520.

The previous prime is 6454138571. The next prime is 6454138597. The reversal of 6454138586 is 6858314546.

It can be written as a sum of positive squares in 2 ways, for example, as 4954048225 + 1500090361 = 70385^2 + 38731^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 886355 + ... + 893606.

Almost surely, 2^6454138586 is an apocalyptic number.

6454138586 is a deficient number, since it is larger than the sum of its proper divisors (5112054490).

6454138586 is a wasteful number, since it uses less digits than its factorization.

6454138586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780014 (or 1780007 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 50.

The square root of 6454138586 is about 80337.6536002888. The cubic root of 6454138586 is about 1861.8560293455.

The spelling of 6454138586 in words is "six billion, four hundred fifty-four million, one hundred thirty-eight thousand, five hundred eighty-six".