3613520072 has 36 divisors (see below), whose sum is σ = 6922862835. Its totient is φ = 1768249600.

The previous prime is 3613520063. The next prime is 3613520101. The reversal of 3613520072 is 2700253163.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

3613520072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 3553828996 + 59691076 = 59614^2 + 7726^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=42506.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9011072 + ... + 9011472.

Almost surely, 2^3613520072 is an apocalyptic number.

It is an amenable number.

3613520072 is a deficient number, since it is larger than the sum of its proper divisors (3309342763).

3613520072 is an frugal number, since it uses more digits than its factorization.

3613520072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 3613520072 is about 60112.5616822308. The cubic root of 3613520072 is about 1534.5350899241.

The spelling of 3613520072 in words is "three billion, six hundred thirteen million, five hundred twenty thousand, seventy-two".