25427152416 has 48 divisors (see below), whose sum is σ = 70672531104. Its totient is φ = 7977145344.

The previous prime is 25427152391. The next prime is 25427152417. The reversal of 25427152416 is 61425172452.

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

It is not an unprimeable number, because it can be changed into a prime (25427152417) 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, 7788550 + ... + 7791813.

It is an arithmetic number, because the mean of its divisors is an integer number (1472344398).

Almost surely, 2^25427152416 is an apocalyptic number.

It is an amenable number.

25427152416 is an abundant number, since it is smaller than the sum of its proper divisors (45245378688).

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

25427152416 is a wasteful number, since it uses less digits than its factorization.

25427152416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15580393 (or 15580385 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The spelling of 25427152416 in words is "twenty-five billion, four hundred twenty-seven million, one hundred fifty-two thousand, four hundred sixteen".