1572378952099 has 2 divisors, whose sum is σ = 1572378952100. Its totient is φ = 1572378952098.

The previous prime is 1572378952063. The next prime is 1572378952103. The reversal of 1572378952099 is 9902598732751.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1572378952099 - 2¹⁹ = 1572378427811 is a prime.

It is not a weakly prime, because it can be changed into another prime (1572378952019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 786189476049 + 786189476050.

It is an arithmetic number, because the mean of its divisors is an integer number (786189476050).

Almost surely, 2^{1572378952099} is an apocalyptic number.

1572378952099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1572378952099 is an equidigital number, since it uses as much as digits as its factorization.

1572378952099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 85730400, while the sum is 67.

The spelling of 1572378952099 in words is "one trillion, five hundred seventy-two billion, three hundred seventy-eight million, nine hundred fifty-two thousand, ninety-nine".