7542479519 has 2 divisors, whose sum is σ = 7542479520. Its totient is φ = 7542479518.

The previous prime is 7542479513. The next prime is 7542479551. The reversal of 7542479519 is 9159742457.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7542479519 is a prime.

It is a super-2 number, since 2×7542479519² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7542479513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3771239759 + 3771239760.

It is an arithmetic number, because the mean of its divisors is an integer number (3771239760).

Almost surely, 2^7542479519 is an apocalyptic number.

7542479519 is a deficient number, since it is larger than the sum of its proper divisors (1).

7542479519 is an equidigital number, since it uses as much as digits as its factorization.

7542479519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3175200, while the sum is 53.

The square root of 7542479519 is about 86847.4496977315. The cubic root of 7542479519 is about 1961.1224584633.

The spelling of 7542479519 in words is "seven billion, five hundred forty-two million, four hundred seventy-nine thousand, five hundred nineteen".