9948715291 has 2 divisors, whose sum is σ = 9948715292. Its totient is φ = 9948715290.

The previous prime is 9948715247. The next prime is 9948715349. The reversal of 9948715291 is 1925178499.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9948715291 - 2³³ = 1358780699 is a prime.

It is not a weakly prime, because it can be changed into another prime (9948715591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4974357645 + 4974357646.

It is an arithmetic number, because the mean of its divisors is an integer number (4974357646).

Almost surely, 2^9948715291 is an apocalyptic number.

9948715291 is a deficient number, since it is larger than the sum of its proper divisors (1).

9948715291 is an equidigital number, since it uses as much as digits as its factorization.

9948715291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 55.

The square root of 9948715291 is about 99743.2468440846. The cubic root of 9948715291 is about 2150.7453907999.

The spelling of 9948715291 in words is "nine billion, nine hundred forty-eight million, seven hundred fifteen thousand, two hundred ninety-one".