7381672173 has 6 divisors (see below), whose sum is σ = 10662415374. Its totient is φ = 4921114776.

The previous prime is 7381672171. The next prime is 7381672189. The reversal of 7381672173 is 3712761837.

It can be written as a sum of positive squares in only one way, i.e., 7379153604 + 2518569 = 85902^2 + 1587^2 .

It is not a de Polignac number, because 7381672173 - 2¹ = 7381672171 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7381672171) 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, 410092890 + ... + 410092907.

It is an arithmetic number, because the mean of its divisors is an integer number (1777069229).

Almost surely, 2^7381672173 is an apocalyptic number.

It is an amenable number.

7381672173 is a deficient number, since it is larger than the sum of its proper divisors (3280743201).

7381672173 is a wasteful number, since it uses less digits than its factorization.

7381672173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820185803 (or 820185800 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 7381672173 is about 85916.6582974454. The cubic root of 7381672173 is about 1947.0850309057.

The spelling of 7381672173 in words is "seven billion, three hundred eighty-one million, six hundred seventy-two thousand, one hundred seventy-three".