3521743747 has 4 divisors (see below), whose sum is σ = 3635348416. Its totient is φ = 3408139080.

The previous prime is 3521743703. The next prime is 3521743763. The reversal of 3521743747 is 7473471253.

3521743747 is digitally balanced in base 2, 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 an emirpimes, since its reverse is a distinct semiprime: 7473471253 = 331 ⋅22578463.

It is a cyclic number.

It is not a de Polignac number, because 3521743747 - 2⁷ = 3521743619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3521743787) 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, 56802288 + ... + 56802349.

It is an arithmetic number, because the mean of its divisors is an integer number (908837104).

Almost surely, 2^3521743747 is an apocalyptic number.

3521743747 is a deficient number, since it is larger than the sum of its proper divisors (113604669).

3521743747 is a wasteful number, since it uses less digits than its factorization.

3521743747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113604668.

The product of its digits is 493920, while the sum is 43.

The square root of 3521743747 is about 59344.2815020959. The cubic root of 3521743747 is about 1521.4321317372.

The spelling of 3521743747 in words is "three billion, five hundred twenty-one million, seven hundred forty-three thousand, seven hundred forty-seven".