7152604512821 has 4 divisors (see below), whose sum is σ = 7152664869600. Its totient is φ = 7152544156044.

The previous prime is 7152604512751. The next prime is 7152604512839. The reversal of 7152604512821 is 1282154062517.

It is a happy number.

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 7152604512821 - 2³⁸ = 6877726605877 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 (7152604512841) 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, 30000281 + ... + 30237758.

It is an arithmetic number, because the mean of its divisors is an integer number (1788166217400).

Almost surely, 2^{7152604512821} is an apocalyptic number.

It is an amenable number.

7152604512821 is a deficient number, since it is larger than the sum of its proper divisors (60356779).

7152604512821 is a wasteful number, since it uses less digits than its factorization.

7152604512821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60356778.

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 7152604512821 in words is "seven trillion, one hundred fifty-two billion, six hundred four million, five hundred twelve thousand, eight hundred twenty-one".