1572132705329 has 4 divisors (see below), whose sum is σ = 1614622778484. Its totient is φ = 1529642632176.

The previous prime is 1572132705317. The next prime is 1572132705331. The reversal of 1572132705329 is 9235072312751.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 939829424704 + 632303280625 = 969448^2 + 795175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1572132705329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1572132705379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21245036522 + ... + 21245036595.

It is an arithmetic number, because the mean of its divisors is an integer number (403655694621).

Almost surely, 2^{1572132705329} is an apocalyptic number.

It is an amenable number.

1572132705329 is a deficient number, since it is larger than the sum of its proper divisors (42490073155).

1572132705329 is an equidigital number, since it uses as much as digits as its factorization.

1572132705329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42490073154.

The product of its (nonzero) digits is 793800, while the sum is 47.

The spelling of 1572132705329 in words is "one trillion, five hundred seventy-two billion, one hundred thirty-two million, seven hundred five thousand, three hundred twenty-nine".