851354064850 has 48 divisors (see below), whose sum is σ = 1656991802880. Its totient is φ = 325041897600.

The previous prime is 851354064809. The next prime is 851354064853. The reversal of 851354064850 is 58460453158.

It is a junction number, because it is equal to n+sod(n) for n = 851354064794 and 851354064803.

It is not an unprimeable number, because it can be changed into a prime (851354064853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3648910 + ... + 3875209.

It is an arithmetic number, because the mean of its divisors is an integer number (34520662560).

Almost surely, 2^851354064850 is an apocalyptic number.

851354064850 is a deficient number, since it is larger than the sum of its proper divisors (805637738030).

851354064850 is a wasteful number, since it uses less digits than its factorization.

851354064850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7524235 (or 7524230 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 49.

The spelling of 851354064850 in words is "eight hundred fifty-one billion, three hundred fifty-four million, sixty-four thousand, eight hundred fifty".