6432742747 has 2 divisors, whose sum is σ = 6432742748. Its totient is φ = 6432742746.

The previous prime is 6432742721. The next prime is 6432742769. The reversal of 6432742747 is 7472472346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6432742747 - 2¹⁹ = 6432218459 is a prime.

It is a super-2 number, since 2×6432742747² = 82760358498162212018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6432742697 and 6432742706.

It is not a weakly prime, because it can be changed into another prime (6432742247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3216371373 + 3216371374.

It is an arithmetic number, because the mean of its divisors is an integer number (3216371374).

Almost surely, 2^6432742747 is an apocalyptic number.

6432742747 is a deficient number, since it is larger than the sum of its proper divisors (1).

6432742747 is an equidigital number, since it uses as much as digits as its factorization.

6432742747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1580544, while the sum is 46.

The square root of 6432742747 is about 80204.3810960474. The cubic root of 6432742747 is about 1859.7963652467.

The spelling of 6432742747 in words is "six billion, four hundred thirty-two million, seven hundred forty-two thousand, seven hundred forty-seven".