4990647136 has 12 divisors (see below), whose sum is σ = 9825336612. Its totient is φ = 2495323552.

The previous prime is 4990647071. The next prime is 4990647139. The reversal of 4990647136 is 6317460994.

It is a self number, because there is not a number n which added to its sum of digits gives 4990647136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4990647139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77978830 + ... + 77978893.

It is an arithmetic number, because the mean of its divisors is an integer number (818778051).

Almost surely, 2^4990647136 is an apocalyptic number.

It is an amenable number.

4990647136 is a deficient number, since it is larger than the sum of its proper divisors (4834689476).

4990647136 is a wasteful number, since it uses less digits than its factorization.

4990647136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155957733 (or 155957725 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 4990647136 is about 70644.5124266563. The cubic root of 4990647136 is about 1708.9090696780.

The spelling of 4990647136 in words is "four billion, nine hundred ninety million, six hundred forty-seven thousand, one hundred thirty-six".