25829818272 has 48 divisors (see below), whose sum is σ = 75336972480. Its totient is φ = 8609939136.

The previous prime is 25829818243. The next prime is 25829818279. The reversal of 25829818272 is 27281892852.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (25829818279) 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 7 ways as a sum of consecutive naturals, for example, 14946948 + ... + 14948675.

It is an arithmetic number, because the mean of its divisors is an integer number (1569520260).

Almost surely, 2^25829818272 is an apocalyptic number.

It is an amenable number.

25829818272 is an abundant number, since it is smaller than the sum of its proper divisors (49507154208).

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

25829818272 is a wasteful number, since it uses less digits than its factorization.

25829818272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29895642 (or 29895628 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 54.

The spelling of 25829818272 in words is "twenty-five billion, eight hundred twenty-nine million, eight hundred eighteen thousand, two hundred seventy-two".