144385877780 has 48 divisors (see below), whose sum is σ = 316668973824. Its totient is φ = 55195176960.

The previous prime is 144385877761. The next prime is 144385877809. The reversal of 144385877780 is 87778583441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394265 + ... + 666495.

It is an arithmetic number, because the mean of its divisors is an integer number (6597270288).

Almost surely, 2^144385877780 is an apocalyptic number.

144385877780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144385877780 is an abundant number, since it is smaller than the sum of its proper divisors (172283096044).

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

144385877780 is a wasteful number, since it uses less digits than its factorization.

144385877780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273416 (or 273414 counting only the distinct ones).

The product of its (nonzero) digits is 42147840, while the sum is 62.

The spelling of 144385877780 in words is "one hundred forty-four billion, three hundred eighty-five million, eight hundred seventy-seven thousand, seven hundred eighty".