851179012 has 6 divisors (see below), whose sum is σ = 1489563278. Its totient is φ = 425589504.

The previous prime is 851179003. The next prime is 851179013. The reversal of 851179012 is 210971158.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 477684736 + 373494276 = 21856^2 + 19326^2 .

It is a super-2 number, since 2×851179012² = 1449011420938592288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (851179013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106397373 + ... + 106397380.

Almost surely, 2^851179012 is an apocalyptic number.

It is an amenable number.

851179012 is a deficient number, since it is larger than the sum of its proper divisors (638384266).

851179012 is a wasteful number, since it uses less digits than its factorization.

851179012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212794757 (or 212794755 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 34.

The square root of 851179012 is about 29174.9723564565. The cubic root of 851179012 is about 947.7060115532.

The spelling of 851179012 in words is "eight hundred fifty-one million, one hundred seventy-nine thousand, twelve".