145518874672444 has 96 divisors (see below), whose sum is σ = 317096924497920. Its totient is φ = 56895171766272.

The previous prime is 145518874672441. The next prime is 145518874672459. The reversal of 145518874672444 is 444276478815541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145518874672441) 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, 22520379 + ... + 28252525.

It is an arithmetic number, because the mean of its divisors is an integer number (3303092963520).

Almost surely, 2^{145518874672444} is an apocalyptic number.

145518874672444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145518874672444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158548462248960).

145518874672444 is an abundant number, since it is smaller than the sum of its proper divisors (171578049825476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145518874672444 is a wasteful number, since it uses less digits than its factorization.

145518874672444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5732987 (or 5732985 counting only the distinct ones).

The product of its digits is 963379200, while the sum is 70.

The spelling of 145518874672444 in words is "one hundred forty-five trillion, five hundred eighteen billion, eight hundred seventy-four million, six hundred seventy-two thousand, four hundred forty-four".