851384470 has 32 divisors (see below), whose sum is σ = 1544126976. Its totient is φ = 337980000.

The previous prime is 851384459. The next prime is 851384483. The reversal of 851384470 is 74483158.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1081417 + ... + 1082203.

It is an arithmetic number, because the mean of its divisors is an integer number (48253968).

Almost surely, 2^851384470 is an apocalyptic number.

851384470 is a deficient number, since it is larger than the sum of its proper divisors (692742506).

851384470 is a wasteful number, since it uses less digits than its factorization.

851384470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 851384470 is about 29178.4932784405. The cubic root of 851384470 is about 947.7822579966.

The spelling of 851384470 in words is "eight hundred fifty-one million, three hundred eighty-four thousand, four hundred seventy".