849285740834 has 4 divisors (see below), whose sum is σ = 1273928611254. Its totient is φ = 424642870416.

The previous prime is 849285740819. The next prime is 849285740837. The reversal of 849285740834 is 438047582948.

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., 845857287025 + 3428453809 = 919705^2 + 58553^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (849285740837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212321435207 + ... + 212321435210.

Almost surely, 2^849285740834 is an apocalyptic number.

849285740834 is a deficient number, since it is larger than the sum of its proper divisors (424642870420).

849285740834 is a wasteful number, since it uses less digits than its factorization.

849285740834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424642870419.

The product of its (nonzero) digits is 61931520, while the sum is 62.

The spelling of 849285740834 in words is "eight hundred forty-nine billion, two hundred eighty-five million, seven hundred forty thousand, eight hundred thirty-four".