14145021890 has 16 divisors (see below), whose sum is σ = 25783332480. Its totient is φ = 5586388080.

The previous prime is 14145021841. The next prime is 14145021901. The reversal of 14145021890 is 9812054141.

It is a self number, because there is not a number n which added to its sum of digits gives 14145021890.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8951756 + ... + 8953335.

It is an arithmetic number, because the mean of its divisors is an integer number (1611458280).

Almost surely, 2^14145021890 is an apocalyptic number.

14145021890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14145021890 is a deficient number, since it is larger than the sum of its proper divisors (11638310590).

14145021890 is a wasteful number, since it uses less digits than its factorization.

14145021890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17905177.

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 14145021890 in words is "fourteen billion, one hundred forty-five million, twenty-one thousand, eight hundred ninety".