6400215062 has 4 divisors (see below), whose sum is σ = 9600322596. Its totient is φ = 3200107530.

The previous prime is 6400215011. The next prime is 6400215071. The reversal of 6400215062 is 2605120046.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1600053764 + ... + 1600053767.

It is an arithmetic number, because the mean of its divisors is an integer number (2400080649).

Almost surely, 2^6400215062 is an apocalyptic number.

6400215062 is a deficient number, since it is larger than the sum of its proper divisors (3200107534).

6400215062 is a wasteful number, since it uses less digits than its factorization.

6400215062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200107533.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 6400215062 is about 80001.3441262083. The cubic root of 6400215062 is about 1856.6563296575.

The spelling of 6400215062 in words is "six billion, four hundred million, two hundred fifteen thousand, sixty-two".