5488656638 has 8 divisors (see below), whose sum is σ = 8516881080. Its totient is φ = 2649696280.

The previous prime is 5488656637. The next prime is 5488656707. The reversal of 5488656638 is 8366568845.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×5488656638² = 60250703379722926088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5488656637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47315948 + ... + 47316063.

It is an arithmetic number, because the mean of its divisors is an integer number (1064610135).

Almost surely, 2^5488656638 is an apocalyptic number.

5488656638 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

5488656638 is a deficient number, since it is larger than the sum of its proper divisors (3028224442).

5488656638 is a wasteful number, since it uses less digits than its factorization.

5488656638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94632042.

The product of its digits is 33177600, while the sum is 59.

The square root of 5488656638 is about 74085.4684671697. The cubic root of 5488656638 is about 1763.9598167104.

The spelling of 5488656638 in words is "five billion, four hundred eighty-eight million, six hundred fifty-six thousand, six hundred thirty-eight".