1350778546573 has 4 divisors (see below), whose sum is σ = 1352756261088. Its totient is φ = 1348800832060.

The previous prime is 1350778546561. The next prime is 1350778546591. The reversal of 1350778546573 is 3756458770531.

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 1350778546573 - 2³⁷ = 1213339593101 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 (1350778546373) 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 in 3 ways as a sum of consecutive naturals, for example, 988856233 + ... + 988857598.

It is an arithmetic number, because the mean of its divisors is an integer number (338189065272).

Almost surely, 2^{1350778546573} is an apocalyptic number.

It is an amenable number.

1350778546573 is a deficient number, since it is larger than the sum of its proper divisors (1977714515).

1350778546573 is an equidigital number, since it uses as much as digits as its factorization.

1350778546573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977714514.

The product of its (nonzero) digits is 74088000, while the sum is 61.

The spelling of 1350778546573 in words is "one trillion, three hundred fifty billion, seven hundred seventy-eight million, five hundred forty-six thousand, five hundred seventy-three".