25378306416 has 120 divisors (see below), whose sum is σ = 71845453680. Its totient is φ = 8362137600.

The previous prime is 25378306411. The next prime is 25378306423. The reversal of 25378306416 is 61460387352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25378306411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4821226 + ... + 4826486.

It is an arithmetic number, because the mean of its divisors is an integer number (598712114).

Almost surely, 2^25378306416 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 25378306416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35922726840).

25378306416 is an abundant number, since it is smaller than the sum of its proper divisors (46467147264).

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

25378306416 is a wasteful number, since it uses less digits than its factorization.

25378306416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5655 (or 5646 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 25378306416 in words is "twenty-five billion, three hundred seventy-eight million, three hundred six thousand, four hundred sixteen".