47916157128 has 128 divisors (see below), whose sum is σ = 142039941120. Its totient is φ = 13181172480.

The previous prime is 47916157099. The next prime is 47916157147. The reversal of 47916157128 is 82175161974.

It is a super-2 number, since 2×47916157128² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1002625 + ... + 1049327.

It is an arithmetic number, because the mean of its divisors is an integer number (1109687040).

Almost surely, 2^47916157128 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 47916157128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71019970560).

47916157128 is an abundant number, since it is smaller than the sum of its proper divisors (94123783992).

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

47916157128 is a wasteful number, since it uses less digits than its factorization.

47916157128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46947 (or 46943 counting only the distinct ones).

The product of its digits is 846720, while the sum is 51.

The spelling of 47916157128 in words is "forty-seven billion, nine hundred sixteen million, one hundred fifty-seven thousand, one hundred twenty-eight".