3651479620 has 24 divisors (see below), whose sum is σ = 7669431000. Its totient is φ = 1460339712.

The previous prime is 3651479561. The next prime is 3651479659. The reversal of 3651479620 is 269741563.

It can be written as a sum of positive squares in 4 ways, for example, as 123832384 + 3527647236 = 11128^2 + 59394^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141046 + ... + 164914.

It is an arithmetic number, because the mean of its divisors is an integer number (319559625).

Almost surely, 2^3651479620 is an apocalyptic number.

It is an amenable number.

3651479620 is an abundant number, since it is smaller than the sum of its proper divisors (4017951380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3651479620 is a wasteful number, since it uses less digits than its factorization.

3651479620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31527 (or 31525 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 3651479620 is about 60427.4740494752. The cubic root of 3651479620 is about 1539.8897458594.

The spelling of 3651479620 in words is "three billion, six hundred fifty-one million, four hundred seventy-nine thousand, six hundred twenty".