1572497431128 has 48 divisors (see below), whose sum is σ = 4586450843520. Its totient is φ = 483845363136.

The previous prime is 1572497431093. The next prime is 1572497431139. The reversal of 1572497431128 is 8211347942751.

It is a happy number.

1572497431128 is a `hidden beast` number, since 1 + 572 + 4 + 9 + 7 + 43 + 1 + 1 + 28 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 840008376 + ... + 840010247.

It is an arithmetic number, because the mean of its divisors is an integer number (95551059240).

Almost surely, 2^{1572497431128} is an apocalyptic number.

1572497431128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1572497431128 is an abundant number, since it is smaller than the sum of its proper divisors (3013953412392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1572497431128 is a wasteful number, since it uses less digits than its factorization.

1572497431128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680018648 (or 1680018641 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The spelling of 1572497431128 in words is "one trillion, five hundred seventy-two billion, four hundred ninety-seven million, four hundred thirty-one thousand, one hundred twenty-eight".