172227378476 has 48 divisors (see below), whose sum is σ = 314181504000. Its totient is φ = 82554814848.

The previous prime is 172227378457. The next prime is 172227378517. The reversal of 172227378476 is 674873722271.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1742225 + ... + 1838423.

It is an arithmetic number, because the mean of its divisors is an integer number (6545448000).

Almost surely, 2^172227378476 is an apocalyptic number.

It is an amenable number.

172227378476 is a deficient number, since it is larger than the sum of its proper divisors (141954125524).

172227378476 is a wasteful number, since it uses less digits than its factorization.

172227378476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96446 (or 96444 counting only the distinct ones).

The product of its digits is 11063808, while the sum is 56.

The spelling of 172227378476 in words is "one hundred seventy-two billion, two hundred twenty-seven million, three hundred seventy-eight thousand, four hundred seventy-six".