4988449557 has 216 divisors, whose sum is σ = 9811148256. Its totient is φ = 2521943424.

The previous prime is 4988449493. The next prime is 4988449561. The reversal of 4988449557 is 7559448894.

4988449557 is a `hidden beast` number, since 4 + 98 + 8 + 4 + 495 + 57 = 666.

It is not a de Polignac number, because 4988449557 - 2⁶ = 4988449493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 4988449494 and 4988449503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4988449597) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 74454438 + ... + 74454504.

Almost surely, 2^4988449557 is an apocalyptic number.

It is an amenable number.

4988449557 is a deficient number, since it is larger than the sum of its proper divisors (4822698699).

4988449557 is a wasteful number, since it uses less digits than its factorization.

4988449557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 127 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 63.

The square root of 4988449557 is about 70628.9569298599. The cubic root of 4988449557 is about 1708.6581994707.

The spelling of 4988449557 in words is "four billion, nine hundred eighty-eight million, four hundred forty-nine thousand, five hundred fifty-seven".