2478172375430 has 16 divisors (see below), whose sum is σ = 4502399158800. Its totient is φ = 982004753952.

The previous prime is 2478172375381. The next prime is 2478172375457. The reversal of 2478172375430 is 345732718742.

It is a super-2 number, since 2×2478172375430² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1158023405 + ... + 1158025544.

It is an arithmetic number, because the mean of its divisors is an integer number (281399947425).

Almost surely, 2^{2478172375430} is an apocalyptic number.

2478172375430 is a deficient number, since it is larger than the sum of its proper divisors (2024226783370).

2478172375430 is a wasteful number, since it uses less digits than its factorization.

2478172375430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316049063.

The product of its (nonzero) digits is 7902720, while the sum is 53.

The spelling of 2478172375430 in words is "two trillion, four hundred seventy-eight billion, one hundred seventy-two million, three hundred seventy-five thousand, four hundred thirty".