25591477901468 has 6 divisors (see below), whose sum is σ = 44785086327576. Its totient is φ = 12795738950732.

The previous prime is 25591477901443. The next prime is 25591477901519. The reversal of 25591477901468 is 86410977419552.

It is a junction number, because it is equal to n+sod(n) for n = 25591477901398 and 25591477901407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3198934737680 + ... + 3198934737687.

It is an arithmetic number, because the mean of its divisors is an integer number (7464181054596).

Almost surely, 2^{25591477901468} is an apocalyptic number.

It is an amenable number.

25591477901468 is a deficient number, since it is larger than the sum of its proper divisors (19193608426108).

25591477901468 is a wasteful number, since it uses less digits than its factorization.

25591477901468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6397869475371 (or 6397869475369 counting only the distinct ones).

The product of its (nonzero) digits is 152409600, while the sum is 68.

The spelling of 25591477901468 in words is "twenty-five trillion, five hundred ninety-one billion, four hundred seventy-seven million, nine hundred one thousand, four hundred sixty-eight".