851047378 has 8 divisors (see below), whose sum is σ = 1278059760. Its totient is φ = 425027460.

The previous prime is 851047363. The next prime is 851047391. The reversal of 851047378 is 873740158.

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, 245968 + ... + 249403.

It is an arithmetic number, because the mean of its divisors is an integer number (159757470).

Almost surely, 2^851047378 is an apocalyptic number.

851047378 is a deficient number, since it is larger than the sum of its proper divisors (427012382).

851047378 is a wasteful number, since it uses less digits than its factorization.

851047378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496232.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 851047378 is about 29172.7163287891. The cubic root of 851047378 is about 947.6571550993.

The spelling of 851047378 in words is "eight hundred fifty-one million, forty-seven thousand, three hundred seventy-eight".