8139332722 has 4 divisors (see below), whose sum is σ = 12208999086. Its totient is φ = 4069666360.

The previous prime is 8139332717. The next prime is 8139332723. The reversal of 8139332722 is 2272339318.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7607153961 + 532178761 = 87219^2 + 23069^2 .

It is not an unprimeable number, because it can be changed into a prime (8139332723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2034833179 + ... + 2034833182.

Almost surely, 2^8139332722 is an apocalyptic number.

8139332722 is a deficient number, since it is larger than the sum of its proper divisors (4069666364).

8139332722 is a wasteful number, since it uses less digits than its factorization.

8139332722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4069666363.

The product of its digits is 108864, while the sum is 40.

The square root of 8139332722 is about 90218.2504929019. The cubic root of 8139332722 is about 2011.5442965653.

The spelling of 8139332722 in words is "eight billion, one hundred thirty-nine million, three hundred thirty-two thousand, seven hundred twenty-two".