25464123336 has 64 divisors (see below), whose sum is σ = 67645212480. Its totient is φ = 7960279040.

The previous prime is 25464123329. The next prime is 25464123341. The reversal of 25464123336 is 63332146452.

It is a junction number, because it is equal to n+sod(n) for n = 25464123294 and 25464123303.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3595 + ... + 225701.

It is an arithmetic number, because the mean of its divisors is an integer number (1056956445).

Almost surely, 2^25464123336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25464123336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33822606240).

25464123336 is an abundant number, since it is smaller than the sum of its proper divisors (42181089144).

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

25464123336 is a wasteful number, since it uses less digits than its factorization.

25464123336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222414 (or 222410 counting only the distinct ones).

The product of its digits is 311040, while the sum is 39.

Adding to 25464123336 its reverse (63332146452), we get a palindrome (88796269788).

The spelling of 25464123336 in words is "twenty-five billion, four hundred sixty-four million, one hundred twenty-three thousand, three hundred thirty-six".