4991465390 has 32 divisors (see below), whose sum is σ = 9255078144. Its totient is φ = 1936811520.

The previous prime is 4991465383. The next prime is 4991465411. The reversal of 4991465390 is 935641994.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104675 + ... + 144705.

It is an arithmetic number, because the mean of its divisors is an integer number (289221192).

Almost surely, 2^4991465390 is an apocalyptic number.

4991465390 is a deficient number, since it is larger than the sum of its proper divisors (4263612754).

4991465390 is a wasteful number, since it uses less digits than its factorization.

4991465390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40412.

The product of its (nonzero) digits is 1049760, while the sum is 50.

The square root of 4991465390 is about 70650.3035379184. The cubic root of 4991465390 is about 1709.0024607239.

The spelling of 4991465390 in words is "four billion, nine hundred ninety-one million, four hundred sixty-five thousand, three hundred ninety".