7147611643 has 16 divisors (see below), whose sum is σ = 7437096000. Its totient is φ = 6861117312.

The previous prime is 7147611599. The next prime is 7147611659. The reversal of 7147611643 is 3461167417.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7147611643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7147611596 and 7147611605.

It is not an unprimeable number, because it can be changed into a prime (7147611043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7168621 + ... + 7169617.

It is an arithmetic number, because the mean of its divisors is an integer number (464818500).

Almost surely, 2^7147611643 is an apocalyptic number.

7147611643 is a deficient number, since it is larger than the sum of its proper divisors (289484357).

7147611643 is a wasteful number, since it uses less digits than its factorization.

7147611643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214.

The product of its digits is 84672, while the sum is 40.

The square root of 7147611643 is about 84543.5487958721. The cubic root of 7147611643 is about 1926.2839934776.

The spelling of 7147611643 in words is "seven billion, one hundred forty-seven million, six hundred eleven thousand, six hundred forty-three".