7147838747 has 16 divisors (see below), whose sum is σ = 8393168832. Its totient is φ = 5958696960.

The previous prime is 7147838729. The next prime is 7147838767. The reversal of 7147838747 is 7478387417.

It is a cyclic number.

It is not a de Polignac number, because 7147838747 - 2⁸ = 7147838491 is a prime.

It is a super-2 number, since 2×7147838747² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7147838692 and 7147838701.

It is not an unprimeable number, because it can be changed into a prime (7147838767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 926747 + ... + 934427.

It is an arithmetic number, because the mean of its divisors is an integer number (524573052).

Almost surely, 2^7147838747 is an apocalyptic number.

7147838747 is a deficient number, since it is larger than the sum of its proper divisors (1245330085).

7147838747 is a wasteful number, since it uses less digits than its factorization.

7147838747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11318.

The product of its digits is 7375872, while the sum is 56.

The square root of 7147838747 is about 84544.8919036508. The cubic root of 7147838747 is about 1926.3043947990.

The spelling of 7147838747 in words is "seven billion, one hundred forty-seven million, eight hundred thirty-eight thousand, seven hundred forty-seven".