25461407747 has 8 divisors (see below), whose sum is σ = 25912508160. Its totient is φ = 25011394560.

The previous prime is 25461407717. The next prime is 25461407749. The reversal of 25461407747 is 74770416452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25461407747 - 2¹⁸ = 25461145603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25461407749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224483 + ... + 318300.

It is an arithmetic number, because the mean of its divisors is an integer number (3239063520).

Almost surely, 2^25461407747 is an apocalyptic number.

25461407747 is a deficient number, since it is larger than the sum of its proper divisors (451100413).

25461407747 is an equidigital number, since it uses as much as digits as its factorization.

25461407747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543613.

The product of its (nonzero) digits is 1317120, while the sum is 47.

The spelling of 25461407747 in words is "twenty-five billion, four hundred sixty-one million, four hundred seven thousand, seven hundred forty-seven".