17948814420 has 24 divisors (see below), whose sum is σ = 50256680544. Its totient is φ = 4786350496.

The previous prime is 17948814419. The next prime is 17948814469. The reversal of 17948814420 is 2441884971.

It is a self number, because there is not a number n which added to its sum of digits gives 17948814420.

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, 149573394 + ... + 149573513.

It is an arithmetic number, because the mean of its divisors is an integer number (2094028356).

Almost surely, 2^17948814420 is an apocalyptic number.

17948814420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17948814420 is an abundant number, since it is smaller than the sum of its proper divisors (32307866124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17948814420 is a wasteful number, since it uses less digits than its factorization.

17948814420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299146919 (or 299146917 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 17948814420 in words is "seventeen billion, nine hundred forty-eight million, eight hundred fourteen thousand, four hundred twenty".