8172220514 has 4 divisors (see below), whose sum is σ = 12258330774. Its totient is φ = 4086110256.

The previous prime is 8172220513. The next prime is 8172220517. The reversal of 8172220514 is 4150222718.

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., 5931618289 + 2240602225 = 77017^2 + 47335^2 .

It is not an unprimeable number, because it can be changed into a prime (8172220513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2043055127 + ... + 2043055130.

Almost surely, 2^8172220514 is an apocalyptic number.

8172220514 is a deficient number, since it is larger than the sum of its proper divisors (4086110260).

8172220514 is a wasteful number, since it uses less digits than its factorization.

8172220514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4086110259.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 8172220514 is about 90400.3347007078. The cubic root of 8172220514 is about 2014.2499379999.

The spelling of 8172220514 in words is "eight billion, one hundred seventy-two million, two hundred twenty thousand, five hundred fourteen".