217217241087434 has 32 divisors (see below), whose sum is σ = 384418881331200. Its totient is φ = 90082024668720.

The previous prime is 217217241087419. The next prime is 217217241087493. The reversal of 217217241087434 is 434780142712712.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17582864 + ... + 27268875.

It is an arithmetic number, because the mean of its divisors is an integer number (12013090041600).

Almost surely, 2^{217217241087434} is an apocalyptic number.

217217241087434 is a deficient number, since it is larger than the sum of its proper divisors (167201640243766).

217217241087434 is a wasteful number, since it uses less digits than its factorization.

217217241087434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44862938.

The product of its (nonzero) digits is 4214784, while the sum is 53.

The spelling of 217217241087434 in words is "two hundred seventeen trillion, two hundred seventeen billion, two hundred forty-one million, eighty-seven thousand, four hundred thirty-four".