173218211040 has 192 divisors, whose sum is σ = 645088872960. Its totient is φ = 38227445760.

The previous prime is 173218211039. The next prime is 173218211053. The reversal of 173218211040 is 40112812371.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 173218210989 and 173218211007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 791406 + ... + 986285.

It is an arithmetic number, because the mean of its divisors is an integer number (3359837880).

Almost surely, 2^173218211040 is an apocalyptic number.

173218211040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

173218211040 is an abundant number, since it is smaller than the sum of its proper divisors (471870661920).

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

173218211040 is a wasteful number, since it uses less digits than its factorization.

173218211040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777745 (or 1777737 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The spelling of 173218211040 in words is "one hundred seventy-three billion, two hundred eighteen million, two hundred eleven thousand, forty".