1538229734571 has 16 divisors (see below), whose sum is σ = 2140241368320. Its totient is φ = 980856280800.

The previous prime is 1538229734557. The next prime is 1538229734581. The reversal of 1538229734571 is 1754379228351.

It is not a de Polignac number, because 1538229734571 - 2¹⁴ = 1538229718187 is a prime.

It is a super-2 number, since 2×1538229734571² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1538229734551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1093440 + ... + 2066898.

It is an arithmetic number, because the mean of its divisors is an integer number (133765085520).

Almost surely, 2^{1538229734571} is an apocalyptic number.

1538229734571 is a deficient number, since it is larger than the sum of its proper divisors (602011633749).

1538229734571 is a wasteful number, since it uses less digits than its factorization.

1538229734571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996386.

The product of its digits is 12700800, while the sum is 57.

The spelling of 1538229734571 in words is "one trillion, five hundred thirty-eight billion, two hundred twenty-nine million, seven hundred thirty-four thousand, five hundred seventy-one".