144910191992 has 8 divisors (see below), whose sum is σ = 271706610000. Its totient is φ = 72455095992.

The previous prime is 144910191973. The next prime is 144910192019. The reversal of 144910191992 is 299191019441.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 144910191992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9056886992 + ... + 9056887007.

It is an arithmetic number, because the mean of its divisors is an integer number (33963326250).

Almost surely, 2^144910191992 is an apocalyptic number.

It is an amenable number.

144910191992 is a deficient number, since it is larger than the sum of its proper divisors (126796418008).

144910191992 is a wasteful number, since it uses less digits than its factorization.

144910191992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18113774005 (or 18113774001 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 50.

The spelling of 144910191992 in words is "one hundred forty-four billion, nine hundred ten million, one hundred ninety-one thousand, nine hundred ninety-two".