144935818868919 has 32 divisors (see below), whose sum is σ = 219545642740480. Its totient is φ = 84312100461312.

The previous prime is 144935818868899. The next prime is 144935818868941. The reversal of 144935818868919 is 919868818539441.

It is not a de Polignac number, because 144935818868919 - 2⁵ = 144935818868887 is a prime.

It is a super-2 number, since 2×144935818868919² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144935818868719) 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, 213660157 + ... + 214337430.

It is an arithmetic number, because the mean of its divisors is an integer number (6860801335640).

Almost surely, 2^{144935818868919} is an apocalyptic number.

144935818868919 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

144935818868919 is a deficient number, since it is larger than the sum of its proper divisors (74609823871561).

144935818868919 is a wasteful number, since it uses less digits than its factorization.

144935818868919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427998079.

The product of its digits is 4299816960, while the sum is 84.

The spelling of 144935818868919 in words is "one hundred forty-four trillion, nine hundred thirty-five billion, eight hundred eighteen million, eight hundred sixty-eight thousand, nine hundred nineteen".