6321492490 has 8 divisors (see below), whose sum is σ = 11378686500. Its totient is φ = 2528596992.

The previous prime is 6321492469. The next prime is 6321492533. The reversal of 6321492490 is 942941236.

It can be written as a sum of positive squares in 2 ways, for example, as 6270897721 + 50594769 = 79189^2 + 7113^2 .

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

It is a super-2 number, since 2×6321492490² = 79922534602252800200, which contains 22 as substring.

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, 316074615 + ... + 316074634.

Almost surely, 2^6321492490 is an apocalyptic number.

6321492490 is a deficient number, since it is larger than the sum of its proper divisors (5057194010).

6321492490 is a wasteful number, since it uses less digits than its factorization.

6321492490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632149256.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 6321492490 is about 79507.8140184976. The cubic root of 6321492490 is about 1849.0126204203.

The spelling of 6321492490 in words is "six billion, three hundred twenty-one million, four hundred ninety-two thousand, four hundred ninety".