673224626978 has 6 divisors (see below), whose sum is σ = 1009838681019. Its totient is φ = 336611733306.

The previous prime is 673224626969. The next prime is 673224627007. The reversal of 673224626978 is 879626422376.

It can be written as a sum of positive squares in only one way, i.e., 336612313489 + 336612313489 = 580183^2 + 580183^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=580183.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 673224626978.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 870275 + ... + 1450457.

Almost surely, 2^673224626978 is an apocalyptic number.

673224626978 is a deficient number, since it is larger than the sum of its proper divisors (336614054041).

673224626978 is an frugal number, since it uses more digits than its factorization.

673224626978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160368 (or 580185 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 62.

The spelling of 673224626978 in words is "six hundred seventy-three billion, two hundred twenty-four million, six hundred twenty-six thousand, nine hundred seventy-eight".