15222939181474 has 8 divisors (see below), whose sum is σ = 23090975163180. Its totient is φ = 7525947460416.

The previous prime is 15222939181343. The next prime is 15222939181477. The reversal of 15222939181474 is 47418193922251.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11861528619249 + 3361410562225 = 3444057^2 + 1833415^2 .

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 (15222939181477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42761064939 + ... + 42761065294.

Almost surely, 2^{15222939181474} is an apocalyptic number.

15222939181474 is a deficient number, since it is larger than the sum of its proper divisors (7868035981706).

15222939181474 is an equidigital number, since it uses as much as digits as its factorization.

15222939181474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85522130324.

The product of its digits is 8709120, while the sum is 58.

The spelling of 15222939181474 in words is "fifteen trillion, two hundred twenty-two billion, nine hundred thirty-nine million, one hundred eighty-one thousand, four hundred seventy-four".