8452517221478 has 16 divisors (see below), whose sum is σ = 13831549578000. Its totient is φ = 3842009460000.

The previous prime is 8452517221469. The next prime is 8452517221487. The reversal of 8452517221478 is 8741227152548.

It is an interprime number because it is at equal distance from previous prime (8452517221469) and next prime (8452517221487).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 177353 + ... + 4115396.

It is an arithmetic number, because the mean of its divisors is an integer number (864471848625).

Almost surely, 2^{8452517221478} is an apocalyptic number.

8452517221478 is a deficient number, since it is larger than the sum of its proper divisors (5379032356522).

8452517221478 is a wasteful number, since it uses less digits than its factorization.

8452517221478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4382263.

The product of its digits is 10035200, while the sum is 56.

The spelling of 8452517221478 in words is "eight trillion, four hundred fifty-two billion, five hundred seventeen million, two hundred twenty-one thousand, four hundred seventy-eight".