7647213753 has 16 divisors (see below), whose sum is σ = 11334870400. Its totient is φ = 5095593360.

The previous prime is 7647213731. The next prime is 7647213757. The reversal of 7647213753 is 3573127467.

It is not a de Polignac number, because 7647213753 - 2¹³ = 7647205561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7647213699 and 7647213708.

It is not an unprimeable number, because it can be changed into a prime (7647213757) 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, 15013 + ... + 124578.

It is an arithmetic number, because the mean of its divisors is an integer number (708429400).

Almost surely, 2^7647213753 is an apocalyptic number.

It is an amenable number.

7647213753 is a deficient number, since it is larger than the sum of its proper divisors (3687656647).

7647213753 is a wasteful number, since it uses less digits than its factorization.

7647213753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141629 (or 141623 counting only the distinct ones).

The product of its digits is 740880, while the sum is 45.

The square root of 7647213753 is about 87448.3490581726. The cubic root of 7647213753 is about 1970.1580909316.

The spelling of 7647213753 in words is "seven billion, six hundred forty-seven million, two hundred thirteen thousand, seven hundred fifty-three".