25777062042 has 8 divisors (see below), whose sum is σ = 51554124096. Its totient is φ = 8592354012.

The previous prime is 25777062041. The next prime is 25777062089. The reversal of 25777062042 is 24026077752.

It is a happy number.

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

25777062042 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 25777061985 and 25777062003.

It is not an unprimeable number, because it can be changed into a prime (25777062041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2148088498 + ... + 2148088509.

It is an arithmetic number, because the mean of its divisors is an integer number (6444265512).

Almost surely, 2^25777062042 is an apocalyptic number.

25777062042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25777062042 is a wasteful number, since it uses less digits than its factorization.

25777062042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4296177012.

The product of its (nonzero) digits is 329280, while the sum is 42.

The spelling of 25777062042 in words is "twenty-five billion, seven hundred seventy-seven million, sixty-two thousand, forty-two".