6445633462 has 8 divisors (see below), whose sum is σ = 9670401576. Its totient is φ = 3222166272.

The previous prime is 6445633427. The next prime is 6445633483. The reversal of 6445633462 is 2643365446.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312748 + ... + 332719.

It is an arithmetic number, because the mean of its divisors is an integer number (1208800197).

Almost surely, 2^6445633462 is an apocalyptic number.

6445633462 is a deficient number, since it is larger than the sum of its proper divisors (3224768114).

6445633462 is a wasteful number, since it uses less digits than its factorization.

6445633462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650462.

The product of its digits is 1244160, while the sum is 43.

The square root of 6445633462 is about 80284.7025403968. The cubic root of 6445633462 is about 1861.0378319932.

It can be divided in two parts, 644563 and 3462, that added together give a square (648025 = 805²).

The spelling of 6445633462 in words is "six billion, four hundred forty-five million, six hundred thirty-three thousand, four hundred sixty-two".