5498636638 has 24 divisors (see below), whose sum is σ = 9599231376. Its totient is φ = 2352356160.

The previous prime is 5498636609. The next prime is 5498636639. The reversal of 5498636638 is 8366368945.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5498636639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 664170 + ... + 672397.

It is an arithmetic number, because the mean of its divisors is an integer number (399967974).

Almost surely, 2^5498636638 is an apocalyptic number.

5498636638 is a deficient number, since it is larger than the sum of its proper divisors (4100594738).

5498636638 is a wasteful number, since it uses less digits than its factorization.

5498636638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336608 (or 1336597 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 58.

The square root of 5498636638 is about 74152.7925165331. The cubic root of 5498636638 is about 1765.0283027987.

The spelling of 5498636638 in words is "five billion, four hundred ninety-eight million, six hundred thirty-six thousand, six hundred thirty-eight".