8309948361 has 16 divisors (see below), whose sum is σ = 13016982720. Its totient is φ = 4648921920.

The previous prime is 8309948351. The next prime is 8309948399. The reversal of 8309948361 is 1638499038.

It is not a de Polignac number, because 8309948361 - 2⁵ = 8309948329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8309948341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9684826 + ... + 9685683.

It is an arithmetic number, because the mean of its divisors is an integer number (813561420).

Almost surely, 2^8309948361 is an apocalyptic number.

It is an amenable number.

8309948361 is a deficient number, since it is larger than the sum of its proper divisors (4707034359).

8309948361 is a wasteful number, since it uses less digits than its factorization.

8309948361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19370536.

The product of its (nonzero) digits is 1119744, while the sum is 51.

The square root of 8309948361 is about 91158.9181649278. The cubic root of 8309948361 is about 2025.5024601649.

The spelling of 8309948361 in words is "eight billion, three hundred nine million, nine hundred forty-eight thousand, three hundred sixty-one".