6445272358 has 16 divisors (see below), whose sum is σ = 11050154784. Its totient is φ = 2761980480.

The previous prime is 6445272343. The next prime is 6445272367. The reversal of 6445272358 is 8532725446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183816 + ... + 216052.

It is an arithmetic number, because the mean of its divisors is an integer number (690634674).

Almost surely, 2^6445272358 is an apocalyptic number.

6445272358 is a deficient number, since it is larger than the sum of its proper divisors (4604882426).

6445272358 is a wasteful number, since it uses less digits than its factorization.

6445272358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46527.

The product of its digits is 1612800, while the sum is 46.

The square root of 6445272358 is about 80282.4536122309. The cubic root of 6445272358 is about 1861.0030776767.

The spelling of 6445272358 in words is "six billion, four hundred forty-five million, two hundred seventy-two thousand, three hundred fifty-eight".