6423833556 has 54 divisors (see below), whose sum is σ = 18889134810. Its totient is φ = 1835380512.

The previous prime is 6423833531. The next prime is 6423833561. The reversal of 6423833556 is 6553383246.

6423833556 is a `hidden beast` number, since 64 + 2 + 3 + 8 + 33 + 556 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6381453456 + 42380100 = 79884^2 + 6510^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1819051 + ... + 1822578.

Almost surely, 2^6423833556 is an apocalyptic number.

It is an amenable number.

6423833556 is an abundant number, since it is smaller than the sum of its proper divisors (12465301254).

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

6423833556 is a wasteful number, since it uses less digits than its factorization.

6423833556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3641653 (or 3641641 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The square root of 6423833556 is about 80148.8213013766. The cubic root of 6423833556 is about 1858.9373777752.

The spelling of 6423833556 in words is "six billion, four hundred twenty-three million, eight hundred thirty-three thousand, five hundred fifty-six".