218672051 has 8 divisors (see below), whose sum is σ = 236533584. Its totient is φ = 200959200.

The previous prime is 218672039. The next prime is 218672081. The reversal of 218672051 is 150276812.

218672051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 218672051 - 2¹⁸ = 218409907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 218671999 and 218672017.

It is not an unprimeable number, because it can be changed into a prime (218672081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34100 + ... + 40001.

It is an arithmetic number, because the mean of its divisors is an integer number (29566698).

Almost surely, 2^218672051 is an apocalyptic number.

218672051 is a deficient number, since it is larger than the sum of its proper divisors (17861533).

218672051 is a wasteful number, since it uses less digits than its factorization.

218672051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74341.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 218672051 is about 14787.5640657953. The cubic root of 218672051 is about 602.4639887110.

The spelling of 218672051 in words is "two hundred eighteen million, six hundred seventy-two thousand, fifty-one".