5438665490 has 32 divisors (see below), whose sum is σ = 10014290496. Its totient is φ = 2125864000.

The previous prime is 5438665487. The next prime is 5438665577. The reversal of 5438665490 is 945668345.

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, 112589 + ... + 153471.

It is an arithmetic number, because the mean of its divisors is an integer number (312946578).

Almost surely, 2^5438665490 is an apocalyptic number.

5438665490 is a deficient number, since it is larger than the sum of its proper divisors (4575625006).

5438665490 is a wasteful number, since it uses less digits than its factorization.

5438665490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41194.

The product of its (nonzero) digits is 3110400, while the sum is 50.

The square root of 5438665490 is about 73747.3083576614. The cubic root of 5438665490 is about 1758.5880430536.

The spelling of 5438665490 in words is "five billion, four hundred thirty-eight million, six hundred sixty-five thousand, four hundred ninety".