8194457384280 has 128 divisors (see below), whose sum is σ = 27338188262400. Its totient is φ = 2183322211200.

The previous prime is 8194457384227. The next prime is 8194457384359. The reversal of 8194457384280 is 824837544918.

It is a happy number.

8194457384280 is a `hidden beast` number, since 8 + 1 + 9 + 445 + 73 + 8 + 42 + 80 = 666.

It is a super-2 number, since 2×8194457384280² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1975056 + ... + 4504415.

It is an arithmetic number, because the mean of its divisors is an integer number (213579595800).

Almost surely, 2^{8194457384280} is an apocalyptic number.

It is an amenable number.

8194457384280 is an abundant number, since it is smaller than the sum of its proper divisors (19143730878120).

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

8194457384280 is a wasteful number, since it uses less digits than its factorization.

8194457384280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6480662 (or 6480652 counting only the distinct ones).

The product of its (nonzero) digits is 61931520, while the sum is 63.

The spelling of 8194457384280 in words is "eight trillion, one hundred ninety-four billion, four hundred fifty-seven million, three hundred eighty-four thousand, two hundred eighty".