3724704143525 has 24 divisors (see below), whose sum is σ = 4732689812424. Its totient is φ = 2906221593600.

The previous prime is 3724704143521. The next prime is 3724704143561. The reversal of 3724704143525 is 5253414074273.

It can be written as a sum of positive squares in 12 ways, for example, as 168488904676 + 3556215238849 = 410474^2 + 1885793^2 .

It is not a de Polignac number, because 3724704143525 - 2² = 3724704143521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3724704143525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3724704143521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2918657 + ... + 3995993.

It is an arithmetic number, because the mean of its divisors is an integer number (197195408851).

Almost surely, 2^{3724704143525} is an apocalyptic number.

It is an amenable number.

3724704143525 is a deficient number, since it is larger than the sum of its proper divisors (1007985668899).

3724704143525 is a wasteful number, since it uses less digits than its factorization.

3724704143525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080761 (or 1080756 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 47.

The spelling of 3724704143525 in words is "three trillion, seven hundred twenty-four billion, seven hundred four million, one hundred forty-three thousand, five hundred twenty-five".