851357274 has 16 divisors (see below), whose sum is σ = 1705124640. Its totient is φ = 283384080.

The previous prime is 851357261. The next prime is 851357291. The reversal of 851357274 is 472753158.

It is a super-2 number, since 2×851357274² = 1449618415985422152, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95812 + ... + 104319.

It is an arithmetic number, because the mean of its divisors is an integer number (106570290).

Almost surely, 2^851357274 is an apocalyptic number.

851357274 is an abundant number, since it is smaller than the sum of its proper divisors (853767366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

851357274 is a wasteful number, since it uses less digits than its factorization.

851357274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200845.

The product of its digits is 235200, while the sum is 42.

The square root of 851357274 is about 29178.0272465429. The cubic root of 851357274 is about 947.7721661358.

The spelling of 851357274 in words is "eight hundred fifty-one million, three hundred fifty-seven thousand, two hundred seventy-four".