423896546556 has 72 divisors (see below), whose sum is σ = 1236479322624. Its totient is φ = 119937434400.

The previous prime is 423896546551. The next prime is 423896546561. The reversal of 423896546556 is 655645698324.

423896546556 is a `hidden beast` number, since 4 + 2 + 3 + 89 + 6 + 546 + 5 + 5 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (423896546551) and next prime (423896546561).

It is a super-2 number, since 2×423896546556² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 423896546493 and 423896546502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423896546551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8139720 + ... + 8191631.

Almost surely, 2^423896546556 is an apocalyptic number.

It is an amenable number.

423896546556 is an abundant number, since it is smaller than the sum of its proper divisors (812582776068).

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

423896546556 is a wasteful number, since it uses less digits than its factorization.

423896546556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16331471 (or 16331466 counting only the distinct ones).

The product of its digits is 186624000, while the sum is 63.

The spelling of 423896546556 in words is "four hundred twenty-three billion, eight hundred ninety-six million, five hundred forty-six thousand, five hundred fifty-six".