3432643540521 has 64 divisors (see below), whose sum is σ = 5432605753344. Its totient is φ = 1909899129600.

The previous prime is 3432643540499. The next prime is 3432643540559. The reversal of 3432643540521 is 1250453462343.

It is not a de Polignac number, because 3432643540521 - 2⁷ = 3432643540393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3432643545521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 239710 + ... + 2631111.

It is an arithmetic number, because the mean of its divisors is an integer number (84884464896).

Almost surely, 2^{3432643540521} is an apocalyptic number.

3432643540521 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3432643540521 is a deficient number, since it is larger than the sum of its proper divisors (1999962212823).

3432643540521 is a wasteful number, since it uses less digits than its factorization.

3432643540521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870934.

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 3432643540521 in words is "three trillion, four hundred thirty-two billion, six hundred forty-three million, five hundred forty thousand, five hundred twenty-one".