25849678410 has 192 divisors, whose sum is σ = 72230296320. Its totient is φ = 6394982400.

The previous prime is 25849678363. The next prime is 25849678427. The reversal of 25849678410 is 1487694852.

It is a happy number.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16752099 + ... + 16753641.

It is an arithmetic number, because the mean of its divisors is an integer number (376199460).

Almost surely, 2^25849678410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25849678410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36115148160).

25849678410 is an abundant number, since it is smaller than the sum of its proper divisors (46380617910).

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

25849678410 is a wasteful number, since it uses less digits than its factorization.

25849678410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 25849678410 in words is "twenty-five billion, eight hundred forty-nine million, six hundred seventy-eight thousand, four hundred ten".