673840847862 has 144 divisors (see below), whose sum is σ = 1846757072160. Its totient is φ = 175990558464.

The previous prime is 673840847837. The next prime is 673840847873. The reversal of 673840847862 is 268748048376.

673840847862 is a `hidden beast` number, since 67 + 3 + 8 + 40 + 8 + 478 + 62 = 666.

It is a super-2 number, since 2×673840847862² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 673840847862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 895714 + ... + 1466282.

It is an arithmetic number, because the mean of its divisors is an integer number (12824701890).

Almost surely, 2^673840847862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673840847862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (923378536080).

673840847862 is an abundant number, since it is smaller than the sum of its proper divisors (1172916224298).

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

673840847862 is a wasteful number, since it uses less digits than its factorization.

673840847862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570707 (or 570697 counting only the distinct ones).

The product of its (nonzero) digits is 86704128, while the sum is 63.

The spelling of 673840847862 in words is "six hundred seventy-three billion, eight hundred forty million, eight hundred forty-seven thousand, eight hundred sixty-two".