8371961339 has 32 divisors (see below), whose sum is σ = 10333274112. Its totient is φ = 6630624000.

The previous prime is 8371961327. The next prime is 8371961341. The reversal of 8371961339 is 9331691738.

It is a de Polignac number, because none of the positive numbers 2^k-8371961339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8371961369) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 408149 + ... + 428169.

It is an arithmetic number, because the mean of its divisors is an integer number (322914816).

Almost surely, 2^8371961339 is an apocalyptic number.

8371961339 is a deficient number, since it is larger than the sum of its proper divisors (1961312773).

8371961339 is a wasteful number, since it uses less digits than its factorization.

8371961339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20147.

The product of its digits is 734832, while the sum is 50.

The square root of 8371961339 is about 91498.4226038897. The cubic root of 8371961339 is about 2030.5284151833.

The spelling of 8371961339 in words is "eight billion, three hundred seventy-one million, nine hundred sixty-one thousand, three hundred thirty-nine".