1345604812742 has 4 divisors (see below), whose sum is σ = 2018407219116. Its totient is φ = 672802406370.

The previous prime is 1345604812723. The next prime is 1345604812759. The reversal of 1345604812742 is 2472184065431.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336401203184 + ... + 336401203187.

It is an arithmetic number, because the mean of its divisors is an integer number (504601804779).

Almost surely, 2^{1345604812742} is an apocalyptic number.

1345604812742 is a deficient number, since it is larger than the sum of its proper divisors (672802406374).

1345604812742 is an equidigital number, since it uses as much as digits as its factorization.

1345604812742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672802406373.

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 1345604812742 in words is "one trillion, three hundred forty-five billion, six hundred four million, eight hundred twelve thousand, seven hundred forty-two".