5187672194 has 8 divisors (see below), whose sum is σ = 7782190668. Its totient is φ = 2593608640.

The previous prime is 5187672169. The next prime is 5187672199. The reversal of 5187672194 is 4912767815.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4258215025 + 929457169 = 65255^2 + 30487^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (5187672199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83627 + ... + 131790.

Almost surely, 2^5187672194 is an apocalyptic number.

5187672194 is a deficient number, since it is larger than the sum of its proper divisors (2594518474).

5187672194 is a wasteful number, since it uses less digits than its factorization.

5187672194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227460.

The product of its digits is 846720, while the sum is 50.

The square root of 5187672194 is about 72025.4968327189. The cubic root of 5187672194 is about 1731.1080468803.

The spelling of 5187672194 in words is "five billion, one hundred eighty-seven million, six hundred seventy-two thousand, one hundred ninety-four".