5638453880 has 16 divisors (see below), whose sum is σ = 12686521320. Its totient is φ = 2255381536.

The previous prime is 5638453871. The next prime is 5638453907. The reversal of 5638453880 is 883548365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70480634 + ... + 70480713.

Almost surely, 2^5638453880 is an apocalyptic number.

It is an amenable number.

5638453880 is an abundant number, since it is smaller than the sum of its proper divisors (7048067440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5638453880 is a wasteful number, since it uses less digits than its factorization.

5638453880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140961358 (or 140961354 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 50.

The square root of 5638453880 is about 75089.6389657055. The cubic root of 5638453880 is about 1779.8634200637.

The spelling of 5638453880 in words is "five billion, six hundred thirty-eight million, four hundred fifty-three thousand, eight hundred eighty".