1572420989239 has 4 divisors (see below), whose sum is σ = 1575295616824. Its totient is φ = 1569546361656.

The previous prime is 1572420989221. The next prime is 1572420989261. The reversal of 1572420989239 is 9329890242751.

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

It is a cyclic number.

It is not a de Polignac number, because 1572420989239 - 2⁵ = 1572420989207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1572420989939) 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, 1437312972 + ... + 1437314065.

It is an arithmetic number, because the mean of its divisors is an integer number (393823904206).

Almost surely, 2^{1572420989239} is an apocalyptic number.

1572420989239 is a deficient number, since it is larger than the sum of its proper divisors (2874627585).

1572420989239 is an equidigital number, since it uses as much as digits as its factorization.

1572420989239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874627584.

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 1572420989239 in words is "one trillion, five hundred seventy-two billion, four hundred twenty million, nine hundred eighty-nine thousand, two hundred thirty-nine".