25384078243 has 8 divisors (see below), whose sum is σ = 25977701376. Its totient is φ = 24790605000.

The previous prime is 25384078231. The next prime is 25384078273. The reversal of 25384078243 is 34287048352.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25384078243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25384078193 and 25384078202.

It is not an unprimeable number, because it can be changed into a prime (25384078273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351918 + ... + 417868.

It is an arithmetic number, because the mean of its divisors is an integer number (3247212672).

Almost surely, 2^25384078243 is an apocalyptic number.

25384078243 is a deficient number, since it is larger than the sum of its proper divisors (593623133).

25384078243 is an equidigital number, since it uses as much as digits as its factorization.

25384078243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74945.

The product of its (nonzero) digits is 1290240, while the sum is 46.

The spelling of 25384078243 in words is "twenty-five billion, three hundred eighty-four million, seventy-eight thousand, two hundred forty-three".