4997159920 has 20 divisors (see below), whose sum is σ = 11618397000. Its totient is φ = 1998863936.

The previous prime is 4997159899. The next prime is 4997159957. The reversal of 4997159920 is 299517994.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31232170 + ... + 31232329.

It is an arithmetic number, because the mean of its divisors is an integer number (580919850).

Almost surely, 2^4997159920 is an apocalyptic number.

4997159920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4997159920 is an abundant number, since it is smaller than the sum of its proper divisors (6621237080).

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

4997159920 is a wasteful number, since it uses less digits than its factorization.

4997159920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62464512 (or 62464506 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 55.

The square root of 4997159920 is about 70690.5928677925. The cubic root of 4997159920 is about 1709.6521207904.

The spelling of 4997159920 in words is "four billion, nine hundred ninety-seven million, one hundred fifty-nine thousand, nine hundred twenty".