3721307518541 has 4 divisors (see below), whose sum is σ = 3883103497632. Its totient is φ = 3559511539452.

The previous prime is 3721307518517. The next prime is 3721307518561. The reversal of 3721307518541 is 1458157031273.

3721307518541 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3721307518541 - 2¹⁸ = 3721307256397 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 (3721307518561) 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, 80897989511 + ... + 80897989556.

It is an arithmetic number, because the mean of its divisors is an integer number (970775874408).

Almost surely, 2^{3721307518541} is an apocalyptic number.

It is an amenable number.

3721307518541 is a deficient number, since it is larger than the sum of its proper divisors (161795979091).

3721307518541 is a wasteful number, since it uses less digits than its factorization.

3721307518541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161795979090.

The product of its (nonzero) digits is 705600, while the sum is 47.

The spelling of 3721307518541 in words is "three trillion, seven hundred twenty-one billion, three hundred seven million, five hundred eighteen thousand, five hundred forty-one".