8271591953 has 2 divisors, whose sum is σ = 8271591954. Its totient is φ = 8271591952.

The previous prime is 8271591941. The next prime is 8271591983. The reversal of 8271591953 is 3591951728.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8079852544 + 191739409 = 89888^2 + 13847^2 .

It is a cyclic number.

It is not a de Polignac number, because 8271591953 - 2¹⁴ = 8271575569 is a prime.

It is not a weakly prime, because it can be changed into another prime (8271591983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4135795976 + 4135795977.

It is an arithmetic number, because the mean of its divisors is an integer number (4135795977).

Almost surely, 2^8271591953 is an apocalyptic number.

It is an amenable number.

8271591953 is a deficient number, since it is larger than the sum of its proper divisors (1).

8271591953 is an equidigital number, since it uses as much as digits as its factorization.

8271591953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 50.

The square root of 8271591953 is about 90948.2927437343. The cubic root of 8271591953 is about 2022.3812679027.

The spelling of 8271591953 in words is "eight billion, two hundred seventy-one million, five hundred ninety-one thousand, nine hundred fifty-three".