850066678400 has 96 divisors (see below), whose sum is σ = 2191231850400. Its totient is φ = 325242874880.

The previous prime is 850066678399. The next prime is 850066678421. The reversal of 850066678400 is 4876660058.

It is a happy number.

It is a super-2 number, since 2×850066678400² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) 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 (50).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5701310 + ... + 5848509.

It is an arithmetic number, because the mean of its divisors is an integer number (22825331775).

Almost surely, 2^850066678400 is an apocalyptic number.

850066678400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

850066678400 is an abundant number, since it is smaller than the sum of its proper divisors (1341165172000).

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

850066678400 is a wasteful number, since it uses less digits than its factorization.

850066678400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11549866 (or 11549849 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 850066678400 in words is "eight hundred fifty billion, sixty-six million, six hundred seventy-eight thousand, four hundred".