1568231136535 has 16 divisors (see below), whose sum is σ = 2153449829376. Its totient is φ = 1073992072608.

The previous prime is 1568231136517. The next prime is 1568231136539. The reversal of 1568231136535 is 5356311328651.

It is not a de Polignac number, because 1568231136535 - 2¹⁵ = 1568231103767 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 (1568231136539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28439167 + ... + 28494256.

It is an arithmetic number, because the mean of its divisors is an integer number (134590614336).

Almost surely, 2^{1568231136535} is an apocalyptic number.

1568231136535 is a deficient number, since it is larger than the sum of its proper divisors (585218692841).

1568231136535 is an equidigital number, since it uses as much as digits as its factorization.

1568231136535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56934222.

The product of its digits is 1944000, while the sum is 49.

The spelling of 1568231136535 in words is "one trillion, five hundred sixty-eight billion, two hundred thirty-one million, one hundred thirty-six thousand, five hundred thirty-five".