673734073401 has 6 divisors (see below), whose sum is σ = 973171439370. Its totient is φ = 449156048928.

The previous prime is 673734073373. The next prime is 673734073483. The reversal of 673734073401 is 104370437376.

673734073401 is a `hidden beast` number, since 6 + 73 + 73 + 40 + 73 + 401 = 666.

It can be written as a sum of positive squares in only one way, i.e., 628057835001 + 45676238400 = 792501^2 + 213720^2 .

It is not a de Polignac number, because 673734073401 - 2¹⁹ = 673733549113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (673734073301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37429670736 + ... + 37429670753.

It is an arithmetic number, because the mean of its divisors is an integer number (162195239895).

Almost surely, 2^673734073401 is an apocalyptic number.

It is an amenable number.

673734073401 is a deficient number, since it is larger than the sum of its proper divisors (299437365969).

673734073401 is a wasteful number, since it uses less digits than its factorization.

673734073401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74859341495 (or 74859341492 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 45.

The spelling of 673734073401 in words is "six hundred seventy-three billion, seven hundred thirty-four million, seventy-three thousand, four hundred one".