25761791867164 has 48 divisors (see below), whose sum is σ = 48197811090240. Its totient is φ = 12018566799360.

The previous prime is 25761791867143. The next prime is 25761791867167. The reversal of 25761791867164 is 46176819716752.

It is a junction number, because it is equal to n+sod(n) for n = 25761791867093 and 25761791867102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25761791867167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25120492 + ... + 26125900.

It is an arithmetic number, because the mean of its divisors is an integer number (1004121064380).

Almost surely, 2^{25761791867164} is an apocalyptic number.

It is an amenable number.

25761791867164 is a deficient number, since it is larger than the sum of its proper divisors (22436019223076).

25761791867164 is a wasteful number, since it uses less digits than its factorization.

25761791867164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012270 (or 1012268 counting only the distinct ones).

The product of its digits is 213373440, while the sum is 70.

The spelling of 25761791867164 in words is "twenty-five trillion, seven hundred sixty-one billion, seven hundred ninety-one million, eight hundred sixty-seven thousand, one hundred sixty-four".