851326938342 has 32 divisors (see below), whose sum is σ = 1917753233760. Its totient is φ = 279888307200.

The previous prime is 851326938299. The next prime is 851326938409. The reversal of 851326938342 is 243839623158.

851326938342 is a `hidden beast` number, since 8 + 5 + 1 + 3 + 269 + 38 + 342 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107977659 + ... + 107985542.

It is an arithmetic number, because the mean of its divisors is an integer number (59929788555).

Almost surely, 2^851326938342 is an apocalyptic number.

851326938342 is an abundant number, since it is smaller than the sum of its proper divisors (1066426295418).

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

851326938342 is a wasteful number, since it uses less digits than its factorization.

851326938342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215963285 (or 215963279 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 851326938342 in words is "eight hundred fifty-one billion, three hundred twenty-six million, nine hundred thirty-eight thousand, three hundred forty-two".