5157946728 has 128 divisors (see below), whose sum is σ = 16169328000. Its totient is φ = 1509096960.

The previous prime is 5157946723. The next prime is 5157946747. The reversal of 5157946728 is 8276497515.

5157946728 is a `hidden beast` number, since 5 + 1 + 579 + 4 + 67 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (5157946721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31476 + ... + 106332.

It is an arithmetic number, because the mean of its divisors is an integer number (126322875).

Almost surely, 2^5157946728 is an apocalyptic number.

5157946728 is a gapful number since it is divisible by the number (58) 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 5157946728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8084664000).

5157946728 is an abundant number, since it is smaller than the sum of its proper divisors (11011381272).

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

5157946728 is a wasteful number, since it uses less digits than its factorization.

5157946728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74912 (or 74902 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The square root of 5157946728 is about 71818.8466072799. The cubic root of 5157946728 is about 1727.7952834256.

The spelling of 5157946728 in words is "five billion, one hundred fifty-seven million, nine hundred forty-six thousand, seven hundred twenty-eight".