673920537552 has 120 divisors (see below), whose sum is σ = 1894884076800. Its totient is φ = 223588502784.

The previous prime is 673920537529. The next prime is 673920537599. The reversal of 673920537552 is 255735029376.

673920537552 is a `hidden beast` number, since 6 + 7 + 39 + 2 + 0 + 53 + 7 + 552 = 666.

673920537552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46537449 + ... + 46551927.

It is an arithmetic number, because the mean of its divisors is an integer number (15790700640).

Almost surely, 2^673920537552 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 673920537552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (947442038400).

673920537552 is an abundant number, since it is smaller than the sum of its proper divisors (1220963539248).

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

673920537552 is a wasteful number, since it uses less digits than its factorization.

673920537552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15985 (or 15976 counting only the distinct ones).

The product of its (nonzero) digits is 11907000, while the sum is 54.

The spelling of 673920537552 in words is "six hundred seventy-three billion, nine hundred twenty million, five hundred thirty-seven thousand, five hundred fifty-two".