418171997494 has 16 divisors (see below), whose sum is σ = 647510438016. Its totient is φ = 202335566400.

The previous prime is 418171997483. The next prime is 418171997561. The reversal of 418171997494 is 494799171814.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2834434 + ... + 2978314.

It is an arithmetic number, because the mean of its divisors is an integer number (40469402376).

Almost surely, 2^418171997494 is an apocalyptic number.

418171997494 is a deficient number, since it is larger than the sum of its proper divisors (229338440522).

418171997494 is a wasteful number, since it uses less digits than its factorization.

418171997494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190791.

The product of its digits is 18289152, while the sum is 64.

The spelling of 418171997494 in words is "four hundred eighteen billion, one hundred seventy-one million, nine hundred ninety-seven thousand, four hundred ninety-four".