851734417008 has 20 divisors (see below), whose sum is σ = 2200313910728. Its totient is φ = 283911472320.

The previous prime is 851734417003. The next prime is 851734417067. The reversal of 851734417008 is 800714437158.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 17744467021 = 851734417008 / (8 + 5 + 1 + 7 + 3 + 4 + 4 + 1 + 7 + 0 + 0 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851734417003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8872233463 + ... + 8872233558.

Almost surely, 2^851734417008 is an apocalyptic number.

It is an amenable number.

851734417008 is an abundant number, since it is smaller than the sum of its proper divisors (1348579493720).

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

851734417008 is a wasteful number, since it uses less digits than its factorization.

851734417008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17744467032 (or 17744467026 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 851734417008 in words is "eight hundred fifty-one billion, seven hundred thirty-four million, four hundred seventeen thousand, eight".