4997143872 has 252 divisors, whose sum is σ = 16836495156. Its totient is φ = 1412812800.

The previous prime is 4997143831. The next prime is 4997143883. The reversal of 4997143872 is 2783417994.

4997143872 is a `hidden beast` number, since 499 + 7 + 143 + 8 + 7 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2423002176 + 2574141696 = 49224^2 + 50736^2 .

It is a tau number, because it is divible by the number of its divisors (252).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2849748 + ... + 2851500.

Almost surely, 2^4997143872 is an apocalyptic number.

4997143872 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4997143872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8418247578).

4997143872 is an abundant number, since it is smaller than the sum of its proper divisors (11839351284).

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

4997143872 is a wasteful number, since it uses less digits than its factorization.

4997143872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886 (or 1866 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 4997143872 is about 70690.4793589632. The cubic root of 4997143872 is about 1709.6502906491.

The spelling of 4997143872 in words is "four billion, nine hundred ninety-seven million, one hundred forty-three thousand, eight hundred seventy-two".