851330390708 has 24 divisors (see below), whose sum is σ = 1757585324544. Its totient is φ = 353086336800.

The previous prime is 851330390689. The next prime is 851330390717. The reversal of 851330390708 is 807093033158.

It is a super-3 number, since 3×851330390708³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490396823 + ... + 490398558.

It is an arithmetic number, because the mean of its divisors is an integer number (73232721856).

Almost surely, 2^851330390708 is an apocalyptic number.

It is an amenable number.

851330390708 is an abundant number, since it is smaller than the sum of its proper divisors (906254933836).

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

851330390708 is a wasteful number, since it uses less digits than its factorization.

851330390708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980795423 (or 980795421 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 851330390708 in words is "eight hundred fifty-one billion, three hundred thirty million, three hundred ninety thousand, seven hundred eight".