4915947840 has 112 divisors (see below), whose sum is σ = 15623072640. Its totient is φ = 1309665280.

The previous prime is 4915947779. The next prime is 4915947893. The reversal of 4915947840 is 487495194.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1448866 + ... + 1452254.

It is an arithmetic number, because the mean of its divisors is an integer number (139491720).

Almost surely, 2^4915947840 is an apocalyptic number.

4915947840 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 4915947840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7811536320).

4915947840 is an abundant number, since it is smaller than the sum of its proper divisors (10707124800).

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

4915947840 is a wasteful number, since it uses less digits than its factorization.

4915947840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4920 (or 4910 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The square root of 4915947840 is about 70113.8206062114. The cubic root of 4915947840 is about 1700.3399366344.

The spelling of 4915947840 in words is "four billion, nine hundred fifteen million, nine hundred forty-seven thousand, eight hundred forty".