3720520005 has 32 divisors (see below), whose sum is σ = 6017877504. Its totient is φ = 1962655296.

The previous prime is 3720519977. The next prime is 3720520019. The reversal of 3720520005 is 5000250273.

It is not a de Polignac number, because 3720520005 - 2¹⁶ = 3720454469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1325934 + ... + 1328736.

It is an arithmetic number, because the mean of its divisors is an integer number (188058672).

Almost surely, 2^3720520005 is an apocalyptic number.

It is an amenable number.

3720520005 is a deficient number, since it is larger than the sum of its proper divisors (2297357499).

3720520005 is a wasteful number, since it uses less digits than its factorization.

3720520005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3745.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 3720520005 is about 60996.0654878657. The cubic root of 3720520005 is about 1549.5343734920.

Adding to 3720520005 its reverse (5000250273), we get a palindrome (8720770278).

The spelling of 3720520005 in words is "three billion, seven hundred twenty million, five hundred twenty thousand, five".