1438185735129 has 32 divisors (see below), whose sum is σ = 2270561255424. Its totient is φ = 798244130880.

The previous prime is 1438185735127. The next prime is 1438185735199. The reversal of 1438185735129 is 9215375818341.

It is not a de Polignac number, because 1438185735129 - 2¹ = 1438185735127 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1438185735127) 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, 13143999 + ... + 13252964.

It is an arithmetic number, because the mean of its divisors is an integer number (70955039232).

Almost surely, 2^{1438185735129} is an apocalyptic number.

It is an amenable number.

1438185735129 is a deficient number, since it is larger than the sum of its proper divisors (832375520295).

1438185735129 is a wasteful number, since it uses less digits than its factorization.

1438185735129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26397117.

The product of its digits is 7257600, while the sum is 57.

The spelling of 1438185735129 in words is "one trillion, four hundred thirty-eight billion, one hundred eighty-five million, seven hundred thirty-five thousand, one hundred twenty-nine".