9152643971 has 2 divisors, whose sum is σ = 9152643972. Its totient is φ = 9152643970.

The previous prime is 9152643959. The next prime is 9152644021. The reversal of 9152643971 is 1793462519.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9152643971 is a prime.

It is not a weakly prime, because it can be changed into another prime (9152640971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4576321985 + 4576321986.

It is an arithmetic number, because the mean of its divisors is an integer number (4576321986).

Almost surely, 2^9152643971 is an apocalyptic number.

9152643971 is a deficient number, since it is larger than the sum of its proper divisors (1).

9152643971 is an equidigital number, since it uses as much as digits as its factorization.

9152643971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 47.

The square root of 9152643971 is about 95669.4516081283. The cubic root of 9152643971 is about 2091.7776723241. Note that the first 3 decimals are identical.

The spelling of 9152643971 in words is "nine billion, one hundred fifty-two million, six hundred forty-three thousand, nine hundred seventy-one".