851298838378 has 8 divisors (see below), whose sum is σ = 1277008218720. Its totient is φ = 425629432140.

The previous prime is 851298838363. The next prime is 851298838387. The reversal of 851298838378 is 873838892158.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9940228 + ... + 10025503.

It is an arithmetic number, because the mean of its divisors is an integer number (159626027340).

Almost surely, 2^851298838378 is an apocalyptic number.

851298838378 is a deficient number, since it is larger than the sum of its proper divisors (425709380342).

851298838378 is a wasteful number, since it uses less digits than its factorization.

851298838378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19987052.

The product of its digits is 185794560, while the sum is 70.

The spelling of 851298838378 in words is "eight hundred fifty-one billion, two hundred ninety-eight million, eight hundred thirty-eight thousand, three hundred seventy-eight".