215110317238 has 16 divisors (see below), whose sum is σ = 330105748896. Its totient is φ = 105101879680.

The previous prime is 215110317229. The next prime is 215110317259. The reversal of 215110317238 is 832713011512.

215110317238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 6686881 + ... + 6718972.

It is an arithmetic number, because the mean of its divisors is an integer number (20631609306).

Almost surely, 2^215110317238 is an apocalyptic number.

215110317238 is a deficient number, since it is larger than the sum of its proper divisors (114995431658).

215110317238 is a wasteful number, since it uses less digits than its factorization.

215110317238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13406039.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 215110317238 in words is "two hundred fifteen billion, one hundred ten million, three hundred seventeen thousand, two hundred thirty-eight".