25411934480 has 80 divisors (see below), whose sum is σ = 62159865264. Its totient is φ = 9648783360.

The previous prime is 25411934477. The next prime is 25411934497. The reversal of 25411934480 is 8443911452.

It can be written as a sum of positive squares in 8 ways, for example, as 97851664 + 25314082816 = 9892^2 + 159104^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16664 + ... + 226056.

Almost surely, 2^25411934480 is an apocalyptic number.

25411934480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25411934480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31079932632).

25411934480 is an abundant number, since it is smaller than the sum of its proper divisors (36747930784).

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

25411934480 is a wasteful number, since it uses less digits than its factorization.

25411934480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209484 (or 209478 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 25411934480 in words is "twenty-five billion, four hundred eleven million, nine hundred thirty-four thousand, four hundred eighty".