7072434521 has 4 divisors (see below), whose sum is σ = 7087200000. Its totient is φ = 7057669044.

The previous prime is 7072434497. The next prime is 7072434559. The reversal of 7072434521 is 1254342707.

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 7072434521 - 2¹⁰ = 7072433497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7072434121) 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, 7382021 + ... + 7382978.

It is an arithmetic number, because the mean of its divisors is an integer number (1771800000).

Almost surely, 2^7072434521 is an apocalyptic number.

It is an amenable number.

7072434521 is a deficient number, since it is larger than the sum of its proper divisors (14765479).

7072434521 is a wasteful number, since it uses less digits than its factorization.

7072434521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14765478.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 7072434521 is about 84097.7676338677. The cubic root of 7072434521 is about 1919.5067563453.

The spelling of 7072434521 in words is "seven billion, seventy-two million, four hundred thirty-four thousand, five hundred twenty-one".