394086550536 has 288 divisors, whose sum is σ = 1288824264000. Its totient is φ = 112485469824.

The previous prime is 394086550519. The next prime is 394086550597. The reversal of 394086550536 is 635055680493.

It is a happy number.

394086550536 is a `hidden beast` number, since 3 + 9 + 4 + 0 + 86 + 550 + 5 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 193273405 + ... + 193275443.

It is an arithmetic number, because the mean of its divisors is an integer number (4475084250).

Almost surely, 2^394086550536 is an apocalyptic number.

394086550536 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394086550536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (644412132000).

394086550536 is an abundant number, since it is smaller than the sum of its proper divisors (894737713464).

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

394086550536 is a wasteful number, since it uses less digits than its factorization.

394086550536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103 (or 4080 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 54.

The spelling of 394086550536 in words is "three hundred ninety-four billion, eighty-six million, five hundred fifty thousand, five hundred thirty-six".