851263880 has 32 divisors (see below), whose sum is σ = 1918209600. Its totient is φ = 339996096.

The previous prime is 851263873. The next prime is 851263961. The reversal of 851263880 is 88362158.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11741 + ... + 42899.

It is an arithmetic number, because the mean of its divisors is an integer number (59944050).

Almost surely, 2^851263880 is an apocalyptic number.

It is an amenable number.

851263880 is an abundant number, since it is smaller than the sum of its proper divisors (1066945720).

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

851263880 is a wasteful number, since it uses less digits than its factorization.

851263880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31853 (or 31849 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 851263880 is about 29176.4267860203. The cubic root of 851263880 is about 947.7375079598.

The spelling of 851263880 in words is "eight hundred fifty-one million, two hundred sixty-three thousand, eight hundred eighty".