1345790135569 has 4 divisors (see below), whose sum is σ = 1468134693360. Its totient is φ = 1223445577780.

The previous prime is 1345790135563. The next prime is 1345790135587. The reversal of 1345790135569 is 9655310975431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1345790135569 - 2³ = 1345790135561 is a prime.

It is a super-2 number, since 2×1345790135569² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345790135561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61172278879 + ... + 61172278900.

It is an arithmetic number, because the mean of its divisors is an integer number (367033673340).

Almost surely, 2^{1345790135569} is an apocalyptic number.

It is an amenable number.

1345790135569 is a deficient number, since it is larger than the sum of its proper divisors (122344557791).

1345790135569 is a wasteful number, since it uses less digits than its factorization.

1345790135569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122344557790.

The product of its (nonzero) digits is 15309000, while the sum is 58.

The spelling of 1345790135569 in words is "one trillion, three hundred forty-five billion, seven hundred ninety million, one hundred thirty-five thousand, five hundred sixty-nine".