6272643749 has 2 divisors, whose sum is σ = 6272643750. Its totient is φ = 6272643748.

The previous prime is 6272643721. The next prime is 6272643761. The reversal of 6272643749 is 9473462726.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5067304225 + 1205339524 = 71185^2 + 34718^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6272643749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6272643697 and 6272643706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6272643449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3136321874 + 3136321875.

It is an arithmetic number, because the mean of its divisors is an integer number (3136321875).

Almost surely, 2^6272643749 is an apocalyptic number.

It is an amenable number.

6272643749 is a deficient number, since it is larger than the sum of its proper divisors (1).

6272643749 is an equidigital number, since it uses as much as digits as its factorization.

6272643749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 50.

The square root of 6272643749 is about 79200.0236679258. The cubic root of 6272643749 is about 1844.2376091324.

The spelling of 6272643749 in words is "six billion, two hundred seventy-two million, six hundred forty-three thousand, seven hundred forty-nine".