25671447007479 has 96 divisors (see below), whose sum is σ = 48325015065600. Its totient is φ = 12743850341376.

The previous prime is 25671447007471. The next prime is 25671447007519. The reversal of 25671447007479 is 97470074417652.

It is a happy number.

25671447007479 is a `hidden beast` number, since 2 + 56 + 7 + 1 + 44 + 70 + 0 + 7 + 479 = 666.

It is not a de Polignac number, because 25671447007479 - 2³ = 25671447007471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25671447007471) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 494616472 + ... + 494668370.

It is an arithmetic number, because the mean of its divisors is an integer number (503385573600).

Almost surely, 2^{25671447007479} is an apocalyptic number.

25671447007479 is a deficient number, since it is larger than the sum of its proper divisors (22653568058121).

25671447007479 is a wasteful number, since it uses less digits than its factorization.

25671447007479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87469 (or 87466 counting only the distinct ones).

The product of its (nonzero) digits is 82978560, while the sum is 63.

The spelling of 25671447007479 in words is "twenty-five trillion, six hundred seventy-one billion, four hundred forty-seven million, seven thousand, four hundred seventy-nine".