851780796702 has 16 divisors (see below), whose sum is σ = 1858430829312. Its totient is φ = 258115392920.

The previous prime is 851780796667. The next prime is 851780796743. The reversal of 851780796702 is 207697087158.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6452884758 + ... + 6452884889.

It is an arithmetic number, because the mean of its divisors is an integer number (116151926832).

Almost surely, 2^851780796702 is an apocalyptic number.

851780796702 is an abundant number, since it is smaller than the sum of its proper divisors (1006650032610).

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

851780796702 is a wasteful number, since it uses less digits than its factorization.

851780796702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12905769663.

The product of its (nonzero) digits is 11854080, while the sum is 60.

The spelling of 851780796702 in words is "eight hundred fifty-one billion, seven hundred eighty million, seven hundred ninety-six thousand, seven hundred two".