215072693215 has 16 divisors (see below), whose sum is σ = 277900515360. Its totient is φ = 159192386560.

The previous prime is 215072693191. The next prime is 215072693219. The reversal of 215072693215 is 512396270512.

It is a happy number.

It is not a de Polignac number, because 215072693215 - 2⁵ = 215072693183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215072693219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21437926 + ... + 21447955.

It is an arithmetic number, because the mean of its divisors is an integer number (17368782210).

Almost surely, 2^215072693215 is an apocalyptic number.

215072693215 is a deficient number, since it is larger than the sum of its proper divisors (62827822145).

215072693215 is a wasteful number, since it uses less digits than its factorization.

215072693215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42885962.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 215072693215 in words is "two hundred fifteen billion, seventy-two million, six hundred ninety-three thousand, two hundred fifteen".