6321492487 has 4 divisors (see below), whose sum is σ = 6358033080. Its totient is φ = 6284951896.

The previous prime is 6321492469. The next prime is 6321492533. The reversal of 6321492487 is 7842941236.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6321492487 is a prime.

It is a super-2 number, since 2×6321492487² = 79922534526394890338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6321492467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18270037 + ... + 18270382.

It is an arithmetic number, because the mean of its divisors is an integer number (1589508270).

Almost surely, 2^6321492487 is an apocalyptic number.

6321492487 is a deficient number, since it is larger than the sum of its proper divisors (36540593).

6321492487 is a wasteful number, since it uses less digits than its factorization.

6321492487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36540592.

The product of its digits is 580608, while the sum is 46.

The square root of 6321492487 is about 79507.8139996315. The cubic root of 6321492487 is about 1849.0126201278.

The spelling of 6321492487 in words is "six billion, three hundred twenty-one million, four hundred ninety-two thousand, four hundred eighty-seven".