3740432225721 has 16 divisors (see below), whose sum is σ = 5105474869440. Its totient is φ = 2434556658240.

The previous prime is 3740432225713. The next prime is 3740432225741. The reversal of 3740432225721 is 1275222340473.

It is a happy number.

It is not a de Polignac number, because 3740432225721 - 2³ = 3740432225713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3740432225741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6096810 + ... + 6682211.

It is an arithmetic number, because the mean of its divisors is an integer number (319092179340).

Almost surely, 2^{3740432225721} is an apocalyptic number.

It is an amenable number.

3740432225721 is a deficient number, since it is larger than the sum of its proper divisors (1365042643719).

3740432225721 is a wasteful number, since it uses less digits than its factorization.

3740432225721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12781336.

The product of its (nonzero) digits is 564480, while the sum is 42.

The spelling of 3740432225721 in words is "three trillion, seven hundred forty billion, four hundred thirty-two million, two hundred twenty-five thousand, seven hundred twenty-one".