25430463234 has 96 divisors (see below), whose sum is σ = 63721157760. Its totient is φ = 7244121600.

The previous prime is 25430463197. The next prime is 25430463239. The reversal of 25430463234 is 43236403452.

25430463234 is a `hidden beast` number, since 25 + 4 + 304 + 6 + 323 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (25430463239) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3089244 + ... + 3097464.

It is an arithmetic number, because the mean of its divisors is an integer number (663762060).

Almost surely, 2^25430463234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25430463234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31860578880).

25430463234 is an abundant number, since it is smaller than the sum of its proper divisors (38290694526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25430463234 is a wasteful number, since it uses less digits than its factorization.

25430463234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9176 (or 9173 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 36.

Adding to 25430463234 its reverse (43236403452), we get a palindrome (68666866686).

The spelling of 25430463234 in words is "twenty-five billion, four hundred thirty million, four hundred sixty-three thousand, two hundred thirty-four".