4931987580 has 144 divisors (see below), whose sum is σ = 16504435584. Its totient is φ = 1184394240.

The previous prime is 4931987561. The next prime is 4931987611. The reversal of 4931987580 is 857891394.

4931987580 is a `hidden beast` number, since 49 + 3 + 19 + 8 + 7 + 580 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70237 + ... + 121643.

It is an arithmetic number, because the mean of its divisors is an integer number (114614136).

Almost surely, 2^4931987580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4931987580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8252217792).

4931987580 is an abundant number, since it is smaller than the sum of its proper divisors (11572448004).

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

4931987580 is a wasteful number, since it uses less digits than its factorization.

4931987580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51476 (or 51471 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The square root of 4931987580 is about 70228.1110382445. Note that the first 3 decimals coincide. The cubic root of 4931987580 is about 1702.1872170188.

The spelling of 4931987580 in words is "four billion, nine hundred thirty-one million, nine hundred eighty-seven thousand, five hundred eighty".