7272795643 has 2 divisors, whose sum is σ = 7272795644. Its totient is φ = 7272795642.

The previous prime is 7272795631. The next prime is 7272795683. The reversal of 7272795643 is 3465972727.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7272795643 is a prime.

It is not a weakly prime, because it can be changed into another prime (7272795683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3636397821 + 3636397822.

It is an arithmetic number, because the mean of its divisors is an integer number (3636397822).

Almost surely, 2^7272795643 is an apocalyptic number.

7272795643 is a deficient number, since it is larger than the sum of its proper divisors (1).

7272795643 is an equidigital number, since it uses as much as digits as its factorization.

7272795643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4445280, while the sum is 52.

The square root of 7272795643 is about 85280.6873975580. The cubic root of 7272795643 is about 1937.4646835769.

The spelling of 7272795643 in words is "seven billion, two hundred seventy-two million, seven hundred ninety-five thousand, six hundred forty-three".