394848527081 has 8 divisors (see below), whose sum is σ = 406352817600. Its totient is φ = 383388063408.

The previous prime is 394848527041. The next prime is 394848527107. The reversal of 394848527081 is 180725848493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-394848527081 is a prime.

It is a super-2 number, since 2×394848527081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 394848527081.

It is not an unprimeable number, because it can be changed into a prime (394848527041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10938431 + ... + 10974468.

It is an arithmetic number, because the mean of its divisors is an integer number (50794102200).

Almost surely, 2^394848527081 is an apocalyptic number.

It is an amenable number.

394848527081 is a deficient number, since it is larger than the sum of its proper divisors (11504290519).

394848527081 is a wasteful number, since it uses less digits than its factorization.

394848527081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21913423.

The product of its (nonzero) digits is 15482880, while the sum is 59.

The spelling of 394848527081 in words is "three hundred ninety-four billion, eight hundred forty-eight million, five hundred twenty-seven thousand, eighty-one".