144897479903 has 32 divisors (see below), whose sum is σ = 161999423040. Its totient is φ = 128490624000.

The previous prime is 144897479899. The next prime is 144897479911. The reversal of 144897479903 is 309974798441.

It is a cyclic number.

It is not a de Polignac number, because 144897479903 - 2² = 144897479899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144897479903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144897479933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49672001 + ... + 49674917.

It is an arithmetic number, because the mean of its divisors is an integer number (5062481970).

Almost surely, 2^144897479903 is an apocalyptic number.

144897479903 is a deficient number, since it is larger than the sum of its proper divisors (17101943137).

144897479903 is a wasteful number, since it uses less digits than its factorization.

144897479903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3579.

The product of its (nonzero) digits is 54867456, while the sum is 65.

The spelling of 144897479903 in words is "one hundred forty-four billion, eight hundred ninety-seven million, four hundred seventy-nine thousand, nine hundred three".