2016138728442 has 32 divisors (see below), whose sum is σ = 4090867188480. Its totient is φ = 662312738880.

The previous prime is 2016138728441. The next prime is 2016138728503. The reversal of 2016138728442 is 2448278316102.

It is a junction number, because it is equal to n+sod(n) for n = 2016138728391 and 2016138728400.

It is not an unprimeable number, because it can be changed into a prime (2016138728441) 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, 3674673 + ... + 4187540.

It is an arithmetic number, because the mean of its divisors is an integer number (127839599640).

Almost surely, 2^{2016138728442} is an apocalyptic number.

2016138728442 is an abundant number, since it is smaller than the sum of its proper divisors (2074728460038).

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

2016138728442 is a wasteful number, since it uses less digits than its factorization.

2016138728442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7862838.

The product of its (nonzero) digits is 1032192, while the sum is 48.

The spelling of 2016138728442 in words is "two trillion, sixteen billion, one hundred thirty-eight million, seven hundred twenty-eight thousand, four hundred forty-two".