851741953942 has 48 divisors (see below), whose sum is σ = 1422874857600. Its totient is φ = 382062574080.

The previous prime is 851741953903. The next prime is 851741953963. The reversal of 851741953942 is 249359147158.

It is a super-2 number, since 2×851741953942² (a number of 25 digits) contains 22 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 23 ways as a sum of consecutive naturals, for example, 8140443 + ... + 8244409.

It is an arithmetic number, because the mean of its divisors is an integer number (29643226200).

Almost surely, 2^851741953942 is an apocalyptic number.

851741953942 is a deficient number, since it is larger than the sum of its proper divisors (571132903658).

851741953942 is a wasteful number, since it uses less digits than its factorization.

851741953942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104437 (or 104426 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 58.

The spelling of 851741953942 in words is "eight hundred fifty-one billion, seven hundred forty-one million, nine hundred fifty-three thousand, nine hundred forty-two".