7447127976 has 96 divisors (see below), whose sum is σ = 21249228000. Its totient is φ = 2349689472.

The previous prime is 7447127969. The next prime is 7447127977. The reversal of 7447127976 is 6797217447.

7447127976 is a `hidden beast` number, since 7 + 447 + 127 + 9 + 76 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (7447127977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2774331 + ... + 2777013.

It is an arithmetic number, because the mean of its divisors is an integer number (221346125).

Almost surely, 2^7447127976 is an apocalyptic number.

7447127976 is a gapful number since it is divisible by the number (76) 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 7447127976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10624614000).

7447127976 is an abundant number, since it is smaller than the sum of its proper divisors (13802100024).

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

7447127976 is a wasteful number, since it uses less digits than its factorization.

7447127976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4743 (or 4736 counting only the distinct ones).

The product of its digits is 4148928, while the sum is 54.

The square root of 7447127976 is about 86296.7437160870. The cubic root of 7447127976 is about 1952.8232587661.

The spelling of 7447127976 in words is "seven billion, four hundred forty-seven million, one hundred twenty-seven thousand, nine hundred seventy-six".