1350747036521 has 4 divisors (see below), whose sum is σ = 1354573515732. Its totient is φ = 1346920557312.

The previous prime is 1350747036479. The next prime is 1350747036559. The reversal of 1350747036521 is 1256307470531.

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

It can be written as a sum of positive squares in 2 ways, for example, as 421954176400 + 928792860121 = 649580^2 + 963739^2 .

It is a cyclic number.

It is not a de Polignac number, because 1350747036521 - 2²² = 1350742842217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1350747032521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1913239076 + ... + 1913239781.

It is an arithmetic number, because the mean of its divisors is an integer number (338643378933).

Almost surely, 2^{1350747036521} is an apocalyptic number.

It is an amenable number.

1350747036521 is a deficient number, since it is larger than the sum of its proper divisors (3826479211).

1350747036521 is an equidigital number, since it uses as much as digits as its factorization.

1350747036521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3826479210.

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 1350747036521 in words is "one trillion, three hundred fifty billion, seven hundred forty-seven million, thirty-six thousand, five hundred twenty-one".