2381997670834 has 4 divisors (see below), whose sum is σ = 3572996506254. Its totient is φ = 1190998835416.

The previous prime is 2381997670831. The next prime is 2381997670889. The reversal of 2381997670834 is 4380767991832.

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., 2280839960025 + 101157710809 = 1510245^2 + 318053^2 .

It is a super-3 number, since 3×2381997670834³ (a number of 38 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2381997670834.

It is not an unprimeable number, because it can be changed into a prime (2381997670831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 595499417707 + ... + 595499417710.

Almost surely, 2^{2381997670834} is an apocalyptic number.

2381997670834 is a deficient number, since it is larger than the sum of its proper divisors (1190998835420).

2381997670834 is a wasteful number, since it uses less digits than its factorization.

2381997670834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190998835419.

The product of its (nonzero) digits is 109734912, while the sum is 67.

The spelling of 2381997670834 in words is "two trillion, three hundred eighty-one billion, nine hundred ninety-seven million, six hundred seventy thousand, eight hundred thirty-four".