25263427946 has 16 divisors (see below), whose sum is σ = 38720112480. Its totient is φ = 12358753680.

The previous prime is 25263427939. The next prime is 25263427961. The reversal of 25263427946 is 64972436252.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25263427894 and 25263427903.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 482441 + ... + 532236.

It is an arithmetic number, because the mean of its divisors is an integer number (2420007030).

Almost surely, 2^25263427946 is an apocalyptic number.

25263427946 is a deficient number, since it is larger than the sum of its proper divisors (13456684534).

25263427946 is a wasteful number, since it uses less digits than its factorization.

25263427946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014949.

The product of its digits is 4354560, while the sum is 50.

The spelling of 25263427946 in words is "twenty-five billion, two hundred sixty-three million, four hundred twenty-seven thousand, nine hundred forty-six".