851597795158 has 32 divisors (see below), whose sum is σ = 1439800639488. Its totient is φ = 374258188800.

The previous prime is 851597795029. The next prime is 851597795159.

It is a happy number.

851597795158 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851597795159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166966 + ... + 1315702.

It is an arithmetic number, because the mean of its divisors is an integer number (44993769984).

Almost surely, 2^851597795158 is an apocalyptic number.

851597795158 is a deficient number, since it is larger than the sum of its proper divisors (588202844330).

851597795158 is a wasteful number, since it uses less digits than its factorization.

851597795158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149868.

The product of its digits is 158760000, while the sum is 70.

The spelling of 851597795158 in words is "eight hundred fifty-one billion, five hundred ninety-seven million, seven hundred ninety-five thousand, one hundred fifty-eight".