3620978366 has 16 divisors (see below), whose sum is σ = 5669443584. Its totient is φ = 1731214584.

The previous prime is 3620978353. The next prime is 3620978369. The reversal of 3620978366 is 6638790263.

It is a super-2 number, since 2×3620978366² = 26222968654080059912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3620978369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155795 + ... + 177521.

It is an arithmetic number, because the mean of its divisors is an integer number (354340224).

Almost surely, 2^3620978366 is an apocalyptic number.

3620978366 is a deficient number, since it is larger than the sum of its proper divisors (2048465218).

3620978366 is a wasteful number, since it uses less digits than its factorization.

3620978366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25375.

The product of its (nonzero) digits is 1959552, while the sum is 50.

The square root of 3620978366 is about 60174.5657732567. The cubic root of 3620978366 is about 1535.5901229192.

The spelling of 3620978366 in words is "three billion, six hundred twenty million, nine hundred seventy-eight thousand, three hundred sixty-six".