15121142464473 has 16 divisors (see below), whose sum is σ = 22671592453440. Its totient is φ = 9959306681952.

The previous prime is 15121142464457. The next prime is 15121142464507. The reversal of 15121142464473 is 37446424112151.

15121142464473 is a `hidden beast` number, since 1 + 5 + 1 + 2 + 1 + 142 + 464 + 47 + 3 = 666.

It is not a de Polignac number, because 15121142464473 - 2⁴ = 15121142464457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15121142864473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3373746636 + ... + 3373751117.

It is an arithmetic number, because the mean of its divisors is an integer number (1416974528340).

Almost surely, 2^{15121142464473} is an apocalyptic number.

It is an amenable number.

15121142464473 is a deficient number, since it is larger than the sum of its proper divisors (7550449988967).

15121142464473 is an equidigital number, since it uses as much as digits as its factorization.

15121142464473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6747497845 (or 6747497839 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The spelling of 15121142464473 in words is "fifteen trillion, one hundred twenty-one billion, one hundred forty-two million, four hundred sixty-four thousand, four hundred seventy-three".