13671577125 has 24 divisors (see below), whose sum is σ = 24645298392. Its totient is φ = 7291507200.

The previous prime is 13671577121. The next prime is 13671577133. The reversal of 13671577125 is 52177517631.

13671577125 is a `hidden beast` number, since 1 + 3 + 6 + 71 + 577 + 1 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 955180836 + 12716396289 = 30906^2 + 112767^2 .

It is not a de Polignac number, because 13671577125 - 2² = 13671577121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13671577121) 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 23 ways as a sum of consecutive naturals, for example, 6075132 + ... + 6077381.

It is an arithmetic number, because the mean of its divisors is an integer number (1026887433).

Almost surely, 2^13671577125 is an apocalyptic number.

13671577125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13671577125 is a deficient number, since it is larger than the sum of its proper divisors (10973721267).

13671577125 is a wasteful number, since it uses less digits than its factorization.

13671577125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12152534 (or 12152521 counting only the distinct ones).

The product of its digits is 308700, while the sum is 45.

The spelling of 13671577125 in words is "thirteen billion, six hundred seventy-one million, five hundred seventy-seven thousand, one hundred twenty-five".