215078730094 has 4 divisors (see below), whose sum is σ = 322618095144. Its totient is φ = 107539365046.

The previous prime is 215078730049. The next prime is 215078730149. The reversal of 215078730094 is 490037870512.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53769682522 + ... + 53769682525.

It is an arithmetic number, because the mean of its divisors is an integer number (80654523786).

Almost surely, 2^215078730094 is an apocalyptic number.

215078730094 is a deficient number, since it is larger than the sum of its proper divisors (107539365050).

215078730094 is a wasteful number, since it uses less digits than its factorization.

215078730094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107539365049.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 215078730094 in words is "two hundred fifteen billion, seventy-eight million, seven hundred thirty thousand, ninety-four".