4891136090 has 16 divisors (see below), whose sum is σ = 8891215560. Its totient is φ = 1937083200.

The previous prime is 4891136083. The next prime is 4891136137. The reversal of 4891136090 is 906311984.

It can be written as a sum of positive squares in 4 ways, for example, as 4886149801 + 4986289 = 69901^2 + 2233^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2420345 + ... + 2422364.

Almost surely, 2^4891136090 is an apocalyptic number.

4891136090 is a deficient number, since it is larger than the sum of its proper divisors (4000079470).

4891136090 is a wasteful number, since it uses less digits than its factorization.

4891136090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4842817.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 4891136090 is about 69936.6576982343. The cubic root of 4891136090 is about 1697.4744609616.

The spelling of 4891136090 in words is "four billion, eight hundred ninety-one million, one hundred thirty-six thousand, ninety".