404217853693 has 16 divisors (see below), whose sum is σ = 440290944000. Its totient is φ = 369966579840.

The previous prime is 404217853687. The next prime is 404217853703. The reversal of 404217853693 is 396358712404.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 404217853693 - 2¹³ = 404217845501 is a prime.

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 404217853693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404217853673) 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, 3121518 + ... + 3248431.

It is an arithmetic number, because the mean of its divisors is an integer number (27518184000).

It is a 1-persistent number, because it is pandigital, but 2⋅404217853693 = 808435707386 is not.

Almost surely, 2^404217853693 is an apocalyptic number.

It is an amenable number.

404217853693 is a deficient number, since it is larger than the sum of its proper divisors (36073090307).

404217853693 is a wasteful number, since it uses less digits than its factorization.

404217853693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6370092.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 404217853693 in words is "four hundred four billion, two hundred seventeen million, eight hundred fifty-three thousand, six hundred ninety-three".