14218951840 has 48 divisors (see below), whose sum is σ = 33647305608. Its totient is φ = 5678263296.

The previous prime is 14218951819. The next prime is 14218951841. The reversal of 14218951840 is 4815981241.

It can be written as a sum of positive squares in 4 ways, for example, as 2846009104 + 11372942736 = 53348^2 + 106644^2 .

It is not an unprimeable number, because it can be changed into a prime (14218951841) 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, 25594 + ... + 170566.

Almost surely, 2^14218951840 is an apocalyptic number.

14218951840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14218951840 is an abundant number, since it is smaller than the sum of its proper divisors (19428353768).

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

14218951840 is a wasteful number, since it uses less digits than its factorization.

14218951840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145601 (or 145593 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 43.

The spelling of 14218951840 in words is "fourteen billion, two hundred eighteen million, nine hundred fifty-one thousand, eight hundred forty".