3546753721 has 12 divisors (see below), whose sum is σ = 4134246480. Its totient is φ = 3033862440.

The previous prime is 3546753719. The next prime is 3546753761. The reversal of 3546753721 is 1273576453.

It is not a de Polignac number, because 3546753721 - 2¹ = 3546753719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3546753761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49651 + ... + 97768.

It is an arithmetic number, because the mean of its divisors is an integer number (344520540).

Almost surely, 2^3546753721 is an apocalyptic number.

It is an amenable number.

3546753721 is a deficient number, since it is larger than the sum of its proper divisors (587492759).

3546753721 is a wasteful number, since it uses less digits than its factorization.

3546753721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147924 (or 147917 counting only the distinct ones).

The product of its digits is 529200, while the sum is 43.

The square root of 3546753721 is about 59554.6280401448. The cubic root of 3546753721 is about 1525.0251678727.

The spelling of 3546753721 in words is "three billion, five hundred forty-six million, seven hundred fifty-three thousand, seven hundred twenty-one".