673509209058 has 192 divisors, whose sum is σ = 1748215332864. Its totient is φ = 183345120000.

The previous prime is 673509209029. The next prime is 673509209059. The reversal of 673509209058 is 850902905376.

673509209058 is a `hidden beast` number, since 67 + 3 + 509 + 20 + 9 + 0 + 58 = 666.

673509209058 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×673509209058² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 673509208995 and 673509209013.

It is not an unprimeable number, because it can be changed into a prime (673509209059) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 286476583 + ... + 286478933.

It is an arithmetic number, because the mean of its divisors is an integer number (9105288192).

Almost surely, 2^673509209058 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673509209058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (874107666432).

673509209058 is an abundant number, since it is smaller than the sum of its proper divisors (1074706123806).

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

673509209058 is a wasteful number, since it uses less digits than its factorization.

673509209058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3501 (or 3498 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 673509209058 in words is "six hundred seventy-three billion, five hundred nine million, two hundred nine thousand, fifty-eight".