25396145643 has 8 divisors (see below), whose sum is σ = 36939848256. Its totient is φ = 15391603400.

The previous prime is 25396145629. The next prime is 25396145651. The reversal of 25396145643 is 34654169352.

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

It is a cyclic number.

It is not a de Polignac number, because 25396145643 - 2⁸ = 25396145387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25396145592 and 25396145601.

It is not an unprimeable number, because it can be changed into a prime (25396145653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384790053 + ... + 384790118.

It is an arithmetic number, because the mean of its divisors is an integer number (4617481032).

Almost surely, 2^25396145643 is an apocalyptic number.

25396145643 is a deficient number, since it is larger than the sum of its proper divisors (11543702613).

25396145643 is a wasteful number, since it uses less digits than its factorization.

25396145643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769580185.

The product of its digits is 2332800, while the sum is 48.

The spelling of 25396145643 in words is "twenty-five billion, three hundred ninety-six million, one hundred forty-five thousand, six hundred forty-three".