6500381215 has 8 divisors (see below), whose sum is σ = 7910323488. Its totient is φ = 5127060960.

The previous prime is 6500381207. The next prime is 6500381231. The reversal of 6500381215 is 5121830056.

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

It is not a de Polignac number, because 6500381215 - 2³ = 6500381207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9155112 + ... + 9155821.

It is an arithmetic number, because the mean of its divisors is an integer number (988790436).

Almost surely, 2^6500381215 is an apocalyptic number.

6500381215 is a deficient number, since it is larger than the sum of its proper divisors (1409942273).

6500381215 is a wasteful number, since it uses less digits than its factorization.

6500381215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18311009.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 6500381215 is about 80624.9416433897. The cubic root of 6500381215 is about 1866.2920620349.

The spelling of 6500381215 in words is "six billion, five hundred million, three hundred eighty-one thousand, two hundred fifteen".