25748406858 has 16 divisors (see below), whose sum is σ = 51539993856. Its totient is φ = 8575605600.

The previous prime is 25748406851. The next prime is 25748406877. The reversal of 25748406858 is 85860484752.

It is a junction number, because it is equal to n+sod(n) for n = 25748406798 and 25748406807.

It is not an unprimeable number, because it can be changed into a prime (25748406851) by changing a digit.

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, 1791418 + ... + 1805733.

It is an arithmetic number, because the mean of its divisors is an integer number (3221249616).

Almost surely, 2^25748406858 is an apocalyptic number.

25748406858 is an abundant number, since it is smaller than the sum of its proper divisors (25791586998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25748406858 is a wasteful number, since it uses less digits than its factorization.

25748406858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3598349.

The product of its (nonzero) digits is 17203200, while the sum is 57.

The spelling of 25748406858 in words is "twenty-five billion, seven hundred forty-eight million, four hundred six thousand, eight hundred fifty-eight".