213917193108 has 48 divisors (see below), whose sum is σ = 554633800000. Its totient is φ = 71301402144.

The previous prime is 213917193107. The next prime is 213917193131. The reversal of 213917193108 is 801391719312.

It is a happy number.

213917193108 is a `hidden beast` number, since 2 + 1 + 391 + 71 + 93 + 108 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213917193101) 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, 2077218 + ... + 2177766.

Almost surely, 2^213917193108 is an apocalyptic number.

It is an amenable number.

213917193108 is an abundant number, since it is smaller than the sum of its proper divisors (340716606892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213917193108 is a wasteful number, since it uses less digits than its factorization.

213917193108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120261 (or 120253 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The spelling of 213917193108 in words is "two hundred thirteen billion, nine hundred seventeen million, one hundred ninety-three thousand, one hundred eight".