1578872737532 has 12 divisors (see below), whose sum is σ = 2763036255336. Its totient is φ = 789433807440.

The previous prime is 1578872737531. The next prime is 1578872737553. The reversal of 1578872737532 is 2357372788751.

It is a super-2 number, since 2×1578872737532² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1578872737531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1684418 + ... + 2448470.

It is an arithmetic number, because the mean of its divisors is an integer number (230253021278).

Almost surely, 2^{1578872737532} is an apocalyptic number.

It is an amenable number.

1578872737532 is a deficient number, since it is larger than the sum of its proper divisors (1184163517804).

1578872737532 is a wasteful number, since it uses less digits than its factorization.

1578872737532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280668 (or 1280666 counting only the distinct ones).

The product of its digits is 138297600, while the sum is 65.

The spelling of 1578872737532 in words is "one trillion, five hundred seventy-eight billion, eight hundred seventy-two million, seven hundred thirty-seven thousand, five hundred thirty-two".