25148117146 has 8 divisors (see below), whose sum is σ = 38146020660. Its totient is φ = 12432776928.

The previous prime is 25148117081. The next prime is 25148117167. The reversal of 25148117146 is 64171184152.

It can be written as a sum of positive squares in 2 ways, for example, as 20811236121 + 4336881025 = 144261^2 + 65855^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 25148117099 and 25148117108.

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 3 ways as a sum of consecutive naturals, for example, 70640601 + ... + 70640956.

Almost surely, 2^25148117146 is an apocalyptic number.

25148117146 is a deficient number, since it is larger than the sum of its proper divisors (12997903514).

25148117146 is a wasteful number, since it uses less digits than its factorization.

25148117146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141281648.

The product of its digits is 53760, while the sum is 40.

The spelling of 25148117146 in words is "twenty-five billion, one hundred forty-eight million, one hundred seventeen thousand, one hundred forty-six".