6420463536 has 40 divisors (see below), whose sum is σ = 16652309184. Its totient is φ = 2131624000.

The previous prime is 6420463487. The next prime is 6420463549. The reversal of 6420463536 is 6353640246.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6420463494 and 6420463503.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254406 + ... + 278501.

Almost surely, 2^6420463536 is an apocalyptic number.

It is an amenable number.

6420463536 is an abundant number, since it is smaller than the sum of its proper divisors (10231845648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6420463536 is a wasteful number, since it uses less digits than its factorization.

6420463536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533169 (or 533163 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 39.

The square root of 6420463536 is about 80127.7950276931. The cubic root of 6420463536 is about 1858.6122473106.

The spelling of 6420463536 in words is "six billion, four hundred twenty million, four hundred sixty-three thousand, five hundred thirty-six".