9870572519 has 2 divisors, whose sum is σ = 9870572520. Its totient is φ = 9870572518.

The previous prime is 9870572441. The next prime is 9870572549. The reversal of 9870572519 is 9152750789.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9870572519 is a prime.

It is a super-2 number, since 2×9870572519² (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 (9870572549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4935286259 + 4935286260.

It is an arithmetic number, because the mean of its divisors is an integer number (4935286260).

Almost surely, 2^9870572519 is an apocalyptic number.

9870572519 is a deficient number, since it is larger than the sum of its proper divisors (1).

9870572519 is an equidigital number, since it uses as much as digits as its factorization.

9870572519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1587600, while the sum is 53.

The square root of 9870572519 is about 99350.7549996476. The cubic root of 9870572519 is about 2145.0995307387.

The spelling of 9870572519 in words is "nine billion, eight hundred seventy million, five hundred seventy-two thousand, five hundred nineteen".