20144503426782 has 32 divisors (see below), whose sum is σ = 46045439783424. Its totient is φ = 5755464842400.

The previous prime is 20144503426781. The next prime is 20144503426799. The reversal of 20144503426782 is 28762430544102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144503426781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2194069 + ... + 6715872.

It is an arithmetic number, because the mean of its divisors is an integer number (1438919993232).

Almost surely, 2^{20144503426782} is an apocalyptic number.

20144503426782 is an abundant number, since it is smaller than the sum of its proper divisors (25900936356642).

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

20144503426782 is a wasteful number, since it uses less digits than its factorization.

20144503426782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8963784.

The product of its (nonzero) digits is 2580480, while the sum is 48.

The spelling of 20144503426782 in words is "twenty trillion, one hundred forty-four billion, five hundred three million, four hundred twenty-six thousand, seven hundred eighty-two".