144429872873 has 48 divisors (see below), whose sum is σ = 177149488320. Its totient is φ = 116893645440.

The previous prime is 144429872869. The next prime is 144429872887. The reversal of 144429872873 is 378278924441.

It is not a de Polignac number, because 144429872873 - 2² = 144429872869 is a prime.

It is a super-2 number, since 2×144429872873² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144429872173) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4904090 + ... + 4933452.

It is an arithmetic number, because the mean of its divisors is an integer number (3690614340).

Almost surely, 2^144429872873 is an apocalyptic number.

144429872873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

144429872873 is a deficient number, since it is larger than the sum of its proper divisors (32719615447).

144429872873 is a wasteful number, since it uses less digits than its factorization.

144429872873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29510 (or 29499 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 59.

The spelling of 144429872873 in words is "one hundred forty-four billion, four hundred twenty-nine million, eight hundred seventy-two thousand, eight hundred seventy-three".