7573345521121 has 8 divisors (see below), whose sum is σ = 7649852920488. Its totient is φ = 7496868000000.

The previous prime is 7573345521109. The next prime is 7573345521149. The reversal of 7573345521121 is 1211255433757.

It can be written as a sum of positive squares in 4 ways, for example, as 4840721626896 + 2732623894225 = 2200164^2 + 1653065^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7573345521121 - 2²¹ = 7573343423969 is a prime.

It is a super-2 number, since 2×7573345521121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7573345525121) 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 7 ways as a sum of consecutive naturals, for example, 6959880 + ... + 7974121.

It is an arithmetic number, because the mean of its divisors is an integer number (956231615061).

Almost surely, 2^{7573345521121} is an apocalyptic number.

It is an amenable number.

7573345521121 is a deficient number, since it is larger than the sum of its proper divisors (76507399367).

7573345521121 is a wasteful number, since it uses less digits than its factorization.

7573345521121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14939123.

The product of its digits is 882000, while the sum is 46.

The spelling of 7573345521121 in words is "seven trillion, five hundred seventy-three billion, three hundred forty-five million, five hundred twenty-one thousand, one hundred twenty-one".