393545021241 has 16 divisors (see below), whose sum is σ = 525546678528. Its totient is φ = 261953520000.

The previous prime is 393545021237. The next prime is 393545021279. The reversal of 393545021241 is 142120545393.

It is not a de Polignac number, because 393545021241 - 2² = 393545021237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 393545021241.

It is not an unprimeable number, because it can be changed into a prime (393545021141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11105371 + ... + 11140751.

It is an arithmetic number, because the mean of its divisors is an integer number (32846667408).

Almost surely, 2^393545021241 is an apocalyptic number.

It is an amenable number.

393545021241 is a deficient number, since it is larger than the sum of its proper divisors (132001657287).

393545021241 is a wasteful number, since it uses less digits than its factorization.

393545021241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41072.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 393545021241 in words is "three hundred ninety-three billion, five hundred forty-five million, twenty-one thousand, two hundred forty-one".