553438443912 has 128 divisors (see below), whose sum is σ = 1427508956160. Its totient is φ = 178693447680.

The previous prime is 553438443863. The next prime is 553438443919. The reversal of 553438443912 is 219344834355.

It is a super-2 number, since 2×553438443912² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (553438443919) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87111328 + ... + 87117680.

It is an arithmetic number, because the mean of its divisors is an integer number (11152413720).

Almost surely, 2^553438443912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 553438443912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (713754478080).

553438443912 is an abundant number, since it is smaller than the sum of its proper divisors (874070512248).

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

553438443912 is a wasteful number, since it uses less digits than its factorization.

553438443912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7023 (or 7019 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 51.

The spelling of 553438443912 in words is "five hundred fifty-three billion, four hundred thirty-eight million, four hundred forty-three thousand, nine hundred twelve".