3730816978 has 24 divisors (see below), whose sum is σ = 6601595904. Its totient is φ = 1576398600.

The previous prime is 3730816951. The next prime is 3730816979. The reversal of 3730816978 is 8796180373.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3730816979) 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 11 ways as a sum of consecutive naturals, for example, 261138 + ... + 275053.

It is an arithmetic number, because the mean of its divisors is an integer number (275066496).

Almost surely, 2^3730816978 is an apocalyptic number.

3730816978 is a deficient number, since it is larger than the sum of its proper divisors (2870778926).

3730816978 is a wasteful number, since it uses less digits than its factorization.

3730816978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536278 (or 536271 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 3730816978 is about 61080.4140293761. The cubic root of 3730816978 is about 1550.9625624364.

The spelling of 3730816978 in words is "three billion, seven hundred thirty million, eight hundred sixteen thousand, nine hundred seventy-eight".