3652136978 has 32 divisors (see below), whose sum is σ = 6444111360. Its totient is φ = 1520026560.

The previous prime is 3652136977. The next prime is 3652137007. The reversal of 3652136978 is 8796312563.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3652136977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40400 + ... + 94532.

It is an arithmetic number, because the mean of its divisors is an integer number (201378480).

Almost surely, 2^3652136978 is an apocalyptic number.

3652136978 is a deficient number, since it is larger than the sum of its proper divisors (2791974382).

3652136978 is a wasteful number, since it uses less digits than its factorization.

3652136978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54282.

The product of its digits is 1632960, while the sum is 50.

The square root of 3652136978 is about 60432.9130358615. The cubic root of 3652136978 is about 1539.9821465856.

The spelling of 3652136978 in words is "three billion, six hundred fifty-two million, one hundred thirty-six thousand, nine hundred seventy-eight".