25435728471068 has 12 divisors (see below), whose sum is σ = 44706902663640. Its totient is φ = 12662327710032.

The previous prime is 25435728471067. The next prime is 25435728471077. The reversal of 25435728471068 is 86017482753452.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25435728471068.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25435728471067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13884130346 + ... + 13884132177.

It is an arithmetic number, because the mean of its divisors is an integer number (3725575221970).

Almost surely, 2^{25435728471068} is an apocalyptic number.

It is an amenable number.

25435728471068 is a deficient number, since it is larger than the sum of its proper divisors (19271174192572).

25435728471068 is a wasteful number, since it uses less digits than its factorization.

25435728471068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27768262756 (or 27768262754 counting only the distinct ones).

The product of its (nonzero) digits is 90316800, while the sum is 62.

The spelling of 25435728471068 in words is "twenty-five trillion, four hundred thirty-five billion, seven hundred twenty-eight million, four hundred seventy-one thousand, sixty-eight".