25708873242 has 32 divisors (see below), whose sum is σ = 56199431232. Its totient is φ = 7792354944.

The previous prime is 25708873219. The next prime is 25708873243. The reversal of 25708873242 is 24237880752.

It is a junction number, because it is equal to n+sod(n) for n = 25708873191 and 25708873200.

It is not an unprimeable number, because it can be changed into a prime (25708873243) 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 15 ways as a sum of consecutive naturals, for example, 2454483 + ... + 2464934.

It is an arithmetic number, because the mean of its divisors is an integer number (1756232226).

Almost surely, 2^25708873242 is an apocalyptic number.

25708873242 is an abundant number, since it is smaller than the sum of its proper divisors (30490557990).

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

25708873242 is a wasteful number, since it uses less digits than its factorization.

25708873242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4919502.

The product of its (nonzero) digits is 1505280, while the sum is 48.

The spelling of 25708873242 in words is "twenty-five billion, seven hundred eight million, eight hundred seventy-three thousand, two hundred forty-two".