851111680480 has 24 divisors (see below), whose sum is σ = 2010751345512. Its totient is φ = 340444672128.

The previous prime is 851111680459. The next prime is 851111680483. The reversal of 851111680480 is 84086111158.

It is a super-2 number, since 2×851111680480² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851111680483) 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, 2659723842 + ... + 2659724161.

It is an arithmetic number, because the mean of its divisors is an integer number (83781306063).

Almost surely, 2^851111680480 is an apocalyptic number.

851111680480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

851111680480 is an abundant number, since it is smaller than the sum of its proper divisors (1159639665032).

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

851111680480 is a wasteful number, since it uses less digits than its factorization.

851111680480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5319448018 (or 5319448010 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 43.

The spelling of 851111680480 in words is "eight hundred fifty-one billion, one hundred eleven million, six hundred eighty thousand, four hundred eighty".