393254220661 has 8 divisors (see below), whose sum is σ = 397698940800. Its totient is φ = 388810081440.

The previous prime is 393254220617. The next prime is 393254220677. The reversal of 393254220661 is 166022452393.

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

It is a cyclic number.

It is not a de Polignac number, because 393254220661 - 2⁷ = 393254220533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393254220061) 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, 1296750 + ... + 1571008.

It is an arithmetic number, because the mean of its divisors is an integer number (49712367600).

Almost surely, 2^393254220661 is an apocalyptic number.

It is an amenable number.

393254220661 is a deficient number, since it is larger than the sum of its proper divisors (4444720139).

393254220661 is a wasteful number, since it uses less digits than its factorization.

393254220661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290459.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 393254220661 in words is "three hundred ninety-three billion, two hundred fifty-four million, two hundred twenty thousand, six hundred sixty-one".