856894598378 has 64 divisors (see below), whose sum is σ = 1703990034432. Its totient is φ = 313792712640.

The previous prime is 856894598377. The next prime is 856894598423. The reversal of 856894598378 is 873895498658.

It is not an unprimeable number, because it can be changed into a prime (856894598377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3171926 + ... + 3431457.

It is an arithmetic number, because the mean of its divisors is an integer number (26624844288).

Almost surely, 2^856894598378 is an apocalyptic number.

856894598378 is a deficient number, since it is larger than the sum of its proper divisors (847095436054).

856894598378 is a wasteful number, since it uses less digits than its factorization.

856894598378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6603459.

The product of its digits is 4180377600, while the sum is 80.

The spelling of 856894598378 in words is "eight hundred fifty-six billion, eight hundred ninety-four million, five hundred ninety-eight thousand, three hundred seventy-eight".