3651872812 has 24 divisors (see below), whose sum is σ = 7305742080. Its totient is φ = 1564660560.

The previous prime is 3651872801. The next prime is 3651872837. The reversal of 3651872812 is 2182781563.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100137 + ... + 131647.

It is an arithmetic number, because the mean of its divisors is an integer number (304405920).

Almost surely, 2^3651872812 is an apocalyptic number.

It is an amenable number.

3651872812 is an abundant number, since it is smaller than the sum of its proper divisors (3653869268).

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

3651872812 is a wasteful number, since it uses less digits than its factorization.

3651872812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35661 (or 35659 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 3651872812 is about 60430.7273826817. The cubic root of 3651872812 is about 1539.9450157464.

The spelling of 3651872812 in words is "three billion, six hundred fifty-one million, eight hundred seventy-two thousand, eight hundred twelve".