25778552942 has 8 divisors (see below), whose sum is σ = 38669242656. Its totient is φ = 12888805392.

The previous prime is 25778552911. The next prime is 25778552953. The reversal of 25778552942 is 24925587752.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162623 + ... + 279290.

It is an arithmetic number, because the mean of its divisors is an integer number (4833655332).

Almost surely, 2^25778552942 is an apocalyptic number.

25778552942 is a deficient number, since it is larger than the sum of its proper divisors (12890689714).

25778552942 is a wasteful number, since it uses less digits than its factorization.

25778552942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471082.

The product of its digits is 14112000, while the sum is 56.

The spelling of 25778552942 in words is "twenty-five billion, seven hundred seventy-eight million, five hundred fifty-two thousand, nine hundred forty-two".