7492720747 has 2 divisors, whose sum is σ = 7492720748. Its totient is φ = 7492720746.

The previous prime is 7492720733. The next prime is 7492720759. The reversal of 7492720747 is 7470272947.

It is a strong prime.

It is an emirp because it is prime and its reverse (7470272947) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7492720747 - 2⁷ = 7492720619 is a prime.

It is a super-2 number, since 2×7492720747² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7492720747.

It is not a weakly prime, because it can be changed into another prime (7492120747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3746360373 + 3746360374.

It is an arithmetic number, because the mean of its divisors is an integer number (3746360374).

Almost surely, 2^7492720747 is an apocalyptic number.

7492720747 is a deficient number, since it is larger than the sum of its proper divisors (1).

7492720747 is an equidigital number, since it uses as much as digits as its factorization.

7492720747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1382976, while the sum is 49.

The square root of 7492720747 is about 86560.5033892479. The cubic root of 7492720747 is about 1956.8003419952.

The spelling of 7492720747 in words is "seven billion, four hundred ninety-two million, seven hundred twenty thousand, seven hundred forty-seven".