673401408012 has 18 divisors (see below), whose sum is σ = 1702209114788. Its totient is φ = 224467135992.

The previous prime is 673401407999. The next prime is 673401408073. The reversal of 673401408012 is 210804104376.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 18705594667 = 673401408012 / (6 + 7 + 3 + 4 + 0 + 1 + 4 + 0 + 8 + 0 + 1 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9352797298 + ... + 9352797369.

Almost surely, 2^673401408012 is an apocalyptic number.

It is an amenable number.

673401408012 is an abundant number, since it is smaller than the sum of its proper divisors (1028807706776).

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

673401408012 is a wasteful number, since it uses less digits than its factorization.

673401408012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18705594677 (or 18705594672 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 673401408012 in words is "six hundred seventy-three billion, four hundred one million, four hundred eight thousand, twelve".