1572873001391 has 2 divisors, whose sum is σ = 1572873001392. Its totient is φ = 1572873001390.

The previous prime is 1572873001379. The next prime is 1572873001489. The reversal of 1572873001391 is 1931003782751.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1572873001391 - 2¹⁸ = 1572872739247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1572873001291) 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 as a sum of consecutive naturals, namely, 786436500695 + 786436500696.

It is an arithmetic number, because the mean of its divisors is an integer number (786436500696).

Almost surely, 2^{1572873001391} is an apocalyptic number.

1572873001391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1572873001391 is an equidigital number, since it uses as much as digits as its factorization.

1572873001391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 47.

The spelling of 1572873001391 in words is "one trillion, five hundred seventy-two billion, eight hundred seventy-three million, one thousand, three hundred ninety-one".