6452387990 has 8 divisors (see below), whose sum is σ = 11614298400. Its totient is φ = 2580955192.

The previous prime is 6452387989. The next prime is 6452388001. The reversal of 6452387990 is 997832546.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322619390 + ... + 322619409.

It is an arithmetic number, because the mean of its divisors is an integer number (1451787300).

Almost surely, 2^6452387990 is an apocalyptic number.

6452387990 is a deficient number, since it is larger than the sum of its proper divisors (5161910410).

6452387990 is a wasteful number, since it uses less digits than its factorization.

6452387990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645238806.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The square root of 6452387990 is about 80326.7576216045. The cubic root of 6452387990 is about 1861.6876798747.

The spelling of 6452387990 in words is "six billion, four hundred fifty-two million, three hundred eighty-seven thousand, nine hundred ninety".