533885137644 has 12 divisors (see below), whose sum is σ = 1245731987864. Its totient is φ = 177961712544.

The previous prime is 533885137571. The next prime is 533885137661. The reversal of 533885137644 is 446731588335.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22245214057 + ... + 22245214080.

Almost surely, 2^533885137644 is an apocalyptic number.

It is an amenable number.

533885137644 is an abundant number, since it is smaller than the sum of its proper divisors (711846850220).

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

533885137644 is a wasteful number, since it uses less digits than its factorization.

533885137644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44490428144 (or 44490428142 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 57.

The spelling of 533885137644 in words is "five hundred thirty-three billion, eight hundred eighty-five million, one hundred thirty-seven thousand, six hundred forty-four".