673412517420 has 96 divisors (see below), whose sum is σ = 1908973785600. Its totient is φ = 177351043584.

The previous prime is 673412517419. The next prime is 673412517467. The reversal of 673412517420 is 24715214376.

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, 4513657 + ... + 4660463.

It is an arithmetic number, because the mean of its divisors is an integer number (19885143600).

Almost surely, 2^673412517420 is an apocalyptic number.

673412517420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673412517420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (954486892800).

673412517420 is an abundant number, since it is smaller than the sum of its proper divisors (1235561268180).

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

673412517420 is a wasteful number, since it uses less digits than its factorization.

673412517420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147767 (or 147765 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 673412517420 in words is "six hundred seventy-three billion, four hundred twelve million, five hundred seventeen thousand, four hundred twenty".