4997923840 has 352 divisors, whose sum is σ = 15648643584. Its totient is φ = 1486356480.

The previous prime is 4997923817. The next prime is 4997923867. The reversal of 4997923840 is 483297994.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7920325 + ... + 7920955.

Almost surely, 2^4997923840 is an apocalyptic number.

4997923840 is a gapful number since it is divisible by the number (40) 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 4997923840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7824321792).

4997923840 is an abundant number, since it is smaller than the sum of its proper divisors (10650719744).

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

4997923840 is a wasteful number, since it uses less digits than its factorization.

4997923840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 55.

The square root of 4997923840 is about 70695.9959262192. The cubic root of 4997923840 is about 1709.7392349995.

The spelling of 4997923840 in words is "four billion, nine hundred ninety-seven million, nine hundred twenty-three thousand, eight hundred forty".