193217107890914 has 4 divisors (see below), whose sum is σ = 289825661836374. Its totient is φ = 96608553945456.

The previous prime is 193217107890899. The next prime is 193217107891043. The reversal of 193217107890914 is 419098701712391.

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

It can be written as a sum of positive squares in only one way, i.e., 171280483731889 + 21936624159025 = 13087417^2 + 4683655^2 .

It is a super-2 number, since 2×193217107890914² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48304276972727 + ... + 48304276972730.

Almost surely, 2^{193217107890914} is an apocalyptic number.

193217107890914 is a deficient number, since it is larger than the sum of its proper divisors (96608553945460).

193217107890914 is an equidigital number, since it uses as much as digits as its factorization.

193217107890914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96608553945459.

The product of its (nonzero) digits is 6858432, while the sum is 62.

The spelling of 193217107890914 in words is "one hundred ninety-three trillion, two hundred seventeen billion, one hundred seven million, eight hundred ninety thousand, nine hundred fourteen".