4988721492 has 36 divisors (see below), whose sum is σ = 12612998580. Its totient is φ = 1662561792.

The previous prime is 4988721487. The next prime is 4988721499. The reversal of 4988721492 is 2941278894.

4988721492 is a `hidden beast` number, since 4 + 9 + 88 + 72 + 1 + 492 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4034282256 + 954439236 = 63516^2 + 30894^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4988721499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208734 + ... + 231402.

Almost surely, 2^4988721492 is an apocalyptic number.

It is an amenable number.

4988721492 is an abundant number, since it is smaller than the sum of its proper divisors (7624277088).

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

4988721492 is a wasteful number, since it uses less digits than its factorization.

4988721492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28792 (or 28787 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 4988721492 is about 70630.8819993068. The cubic root of 4988721492 is about 1708.6892468946.

The spelling of 4988721492 in words is "four billion, nine hundred eighty-eight million, seven hundred twenty-one thousand, four hundred ninety-two".