25756146146 has 8 divisors (see below), whose sum is σ = 39678387420. Its totient is φ = 12530017008.

The previous prime is 25756146137. The next prime is 25756146181. The reversal of 25756146146 is 64164165752.

25756146146 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 24542668921 + 1213477225 = 156661^2 + 34835^2 .

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

It is a super-2 number, since 2×25756146146² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25756146146.

It is an unprimeable number.

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, 174027941 + ... + 174028088.

Almost surely, 2^25756146146 is an apocalyptic number.

25756146146 is a deficient number, since it is larger than the sum of its proper divisors (13922241274).

25756146146 is a wasteful number, since it uses less digits than its factorization.

25756146146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348056068.

The product of its digits is 1209600, while the sum is 47.

The spelling of 25756146146 in words is "twenty-five billion, seven hundred fifty-six million, one hundred forty-six thousand, one hundred forty-six".