7172878282 has 8 divisors (see below), whose sum is σ = 10880208900. Its totient is φ = 3546141984.

The previous prime is 7172878267. The next prime is 7172878283. The reversal of 7172878282 is 2828782717.

It can be written as a sum of positive squares in 2 ways, for example, as 6549826761 + 623051521 = 80931^2 + 24961^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (7172878283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20148357 + ... + 20148712.

Almost surely, 2^7172878282 is an apocalyptic number.

7172878282 is a deficient number, since it is larger than the sum of its proper divisors (3707330618).

7172878282 is a wasteful number, since it uses less digits than its factorization.

7172878282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40297160.

The product of its digits is 1404928, while the sum is 52.

The square root of 7172878282 is about 84692.8466991162. The cubic root of 7172878282 is about 1928.5511136997.

The spelling of 7172878282 in words is "seven billion, one hundred seventy-two million, eight hundred seventy-eight thousand, two hundred eighty-two".