851009343432 has 16 divisors (see below), whose sum is σ = 2127523358640. Its totient is φ = 283669781136.

The previous prime is 851009343427. The next prime is 851009343449. The reversal of 851009343432 is 234343900158.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17729361298 + ... + 17729361345.

It is an arithmetic number, because the mean of its divisors is an integer number (132970209915).

Almost surely, 2^851009343432 is an apocalyptic number.

It is an amenable number.

851009343432 is an abundant number, since it is smaller than the sum of its proper divisors (1276514015208).

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

851009343432 is a wasteful number, since it uses less digits than its factorization.

851009343432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35458722652 (or 35458722648 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 851009343432 in words is "eight hundred fifty-one billion, nine million, three hundred forty-three thousand, four hundred thirty-two".