6321462649 has 4 divisors (see below), whose sum is σ = 6321771664. Its totient is φ = 6321153636.

The previous prime is 6321462647. The next prime is 6321462673. The reversal of 6321462649 is 9462641236.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6321462649 - 2¹ = 6321462647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6321462643) 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, 121467 + ... + 165520.

It is an arithmetic number, because the mean of its divisors is an integer number (1580442916).

Almost surely, 2^6321462649 is an apocalyptic number.

It is an amenable number.

6321462649 is a deficient number, since it is larger than the sum of its proper divisors (309015).

6321462649 is a wasteful number, since it uses less digits than its factorization.

6321462649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309014.

The product of its digits is 373248, while the sum is 43.

The square root of 6321462649 is about 79507.6263574759. The cubic root of 6321462649 is about 1849.0097109559.

The spelling of 6321462649 in words is "six billion, three hundred twenty-one million, four hundred sixty-two thousand, six hundred forty-nine".