25479746371 has 4 divisors (see below), whose sum is σ = 25538864544. Its totient is φ = 25420628200.

The previous prime is 25479746351. The next prime is 25479746381. The reversal of 25479746371 is 17364797452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25479746371 - 2⁹ = 25479745859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25479746351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29558440 + ... + 29559301.

It is an arithmetic number, because the mean of its divisors is an integer number (6384716136).

Almost surely, 2^25479746371 is an apocalyptic number.

25479746371 is a deficient number, since it is larger than the sum of its proper divisors (59118173).

25479746371 is an equidigital number, since it uses as much as digits as its factorization.

25479746371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59118172.

The product of its digits is 8890560, while the sum is 55.

The spelling of 25479746371 in words is "twenty-five billion, four hundred seventy-nine million, seven hundred forty-six thousand, three hundred seventy-one".