673400740734 has 24 divisors (see below), whose sum is σ = 1459110745872. Its totient is φ = 224455250880.

The previous prime is 673400740729. The next prime is 673400740781. The reversal of 673400740734 is 437047004376.

It is a self number, because there is not a number n which added to its sum of digits gives 673400740734.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 612234 + ... + 1312109.

It is an arithmetic number, because the mean of its divisors is an integer number (60796281078).

Almost surely, 2^673400740734 is an apocalyptic number.

673400740734 is an abundant number, since it is smaller than the sum of its proper divisors (785710005138).

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

673400740734 is a wasteful number, since it uses less digits than its factorization.

673400740734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943792 (or 1943789 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 45.

The spelling of 673400740734 in words is "six hundred seventy-three billion, four hundred million, seven hundred forty thousand, seven hundred thirty-four".