145888857444 has 24 divisors (see below), whose sum is σ = 371353455648. Its totient is φ = 44208744640.

The previous prime is 145888857409. The next prime is 145888857451. The reversal of 145888857444 is 444758888541.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552609177 + ... + 552609440.

It is an arithmetic number, because the mean of its divisors is an integer number (15473060652).

Almost surely, 2^145888857444 is an apocalyptic number.

It is an amenable number.

145888857444 is an abundant number, since it is smaller than the sum of its proper divisors (225464598204).

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

145888857444 is a wasteful number, since it uses less digits than its factorization.

145888857444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105218635 (or 1105218633 counting only the distinct ones).

The product of its digits is 183500800, while the sum is 66.

The spelling of 145888857444 in words is "one hundred forty-five billion, eight hundred eighty-eight million, eight hundred fifty-seven thousand, four hundred forty-four".