673704400734 has 32 divisors (see below), whose sum is σ = 1497202302240. Its totient is φ = 224555921856.

The previous prime is 673704400687. The next prime is 673704400769. The reversal of 673704400734 is 437004407376.

673704400734 is a `hidden beast` number, since 6 + 73 + 70 + 440 + 0 + 73 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 673704400734.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691762 + ... + 1351274.

It is an arithmetic number, because the mean of its divisors is an integer number (46787571945).

Almost surely, 2^673704400734 is an apocalyptic number.

673704400734 is an abundant number, since it is smaller than the sum of its proper divisors (823497901506).

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

673704400734 is a wasteful number, since it uses less digits than its factorization.

673704400734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678441 (or 678435 counting only the distinct ones).

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

The spelling of 673704400734 in words is "six hundred seventy-three billion, seven hundred four million, four hundred thousand, seven hundred thirty-four".