25346380621997 has 16 divisors (see below), whose sum is σ = 25561324872000. Its totient is φ = 25132347221760.

The previous prime is 25346380621993. The next prime is 25346380622029. The reversal of 25346380621997 is 79912608364352.

It is a cyclic number.

It is not a de Polignac number, because 25346380621997 - 2² = 25346380621993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25346380621993) 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, 94477754 + ... + 94745652.

It is an arithmetic number, because the mean of its divisors is an integer number (1597582804500).

It is a 1-persistent number, because it is pandigital, but 2⋅25346380621997 = 50692761243994 is not.

Almost surely, 2^{25346380621997} is an apocalyptic number.

It is an amenable number.

25346380621997 is a deficient number, since it is larger than the sum of its proper divisors (214944250003).

25346380621997 is a wasteful number, since it uses less digits than its factorization.

25346380621997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269596.

The product of its (nonzero) digits is 117573120, while the sum is 65.

The spelling of 25346380621997 in words is "twenty-five trillion, three hundred forty-six billion, three hundred eighty million, six hundred twenty-one thousand, nine hundred ninety-seven".