25319879044 has 6 divisors (see below), whose sum is σ = 44309788334. Its totient is φ = 12659939520.

The previous prime is 25319879041. The next prime is 25319879069. The reversal of 25319879044 is 44097891352.

It can be written as a sum of positive squares in only one way, i.e., 19435148100 + 5884730944 = 139410^2 + 76712^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25319878982 and 25319879000.

It is not an unprimeable number, because it can be changed into a prime (25319879041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3164984877 + ... + 3164984884.

Almost surely, 2^25319879044 is an apocalyptic number.

It is an amenable number.

25319879044 is a deficient number, since it is larger than the sum of its proper divisors (18989909290).

25319879044 is a wasteful number, since it uses less digits than its factorization.

25319879044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6329969765 (or 6329969763 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 25319879044 in words is "twenty-five billion, three hundred nineteen million, eight hundred seventy-nine thousand, forty-four".