25784532343258 has 16 divisors (see below), whose sum is σ = 41653014570720. Its totient is φ = 11900245472496.

The previous prime is 25784532343249. The next prime is 25784532343259. The reversal of 25784532343258 is 85234323548752.

It is a junction number, because it is equal to n+sod(n) for n = 25784532343196 and 25784532343205.

It is not an unprimeable number, because it can be changed into a prime (25784532343259) 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, 11804128 + ... + 13816891.

It is an arithmetic number, because the mean of its divisors is an integer number (2603313410670).

Almost surely, 2^{25784532343258} is an apocalyptic number.

25784532343258 is a deficient number, since it is larger than the sum of its proper divisors (15868482227462).

25784532343258 is a wasteful number, since it uses less digits than its factorization.

25784532343258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25659741.

The product of its digits is 193536000, while the sum is 61.

The spelling of 25784532343258 in words is "twenty-five trillion, seven hundred eighty-four billion, five hundred thirty-two million, three hundred forty-three thousand, two hundred fifty-eight".