6402360621 has 16 divisors (see below), whose sum is σ = 8715366720. Its totient is φ = 4179127680.

The previous prime is 6402360611. The next prime is 6402360649. The reversal of 6402360621 is 1260632046.

It is not a de Polignac number, because 6402360621 - 2¹⁵ = 6402327853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6402360611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37065 + ... + 119073.

It is an arithmetic number, because the mean of its divisors is an integer number (544710420).

Almost surely, 2^6402360621 is an apocalyptic number.

It is an amenable number.

6402360621 is a deficient number, since it is larger than the sum of its proper divisors (2313006099).

6402360621 is a wasteful number, since it uses less digits than its factorization.

6402360621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82556.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 6402360621 is about 80014.7525210195. The cubic root of 6402360621 is about 1856.8637768866.

Adding to 6402360621 its reverse (1260632046), we get a palindrome (7662992667).

The spelling of 6402360621 in words is "six billion, four hundred two million, three hundred sixty thousand, six hundred twenty-one".