13671370128 has 40 divisors (see below), whose sum is σ = 38034454528. Its totient is φ = 4206575232.

The previous prime is 13671370127. The next prime is 13671370129. The reversal of 13671370128 is 82107317631.

It is an interprime number because it is at equal distance from previous prime (13671370127) and next prime (13671370129).

It is a super-2 number, since 2×13671370128² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (13671370127) 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, 10954000 + ... + 10955247.

Almost surely, 2^13671370128 is an apocalyptic number.

It is an amenable number.

13671370128 is an abundant number, since it is smaller than the sum of its proper divisors (24363084400).

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

13671370128 is a wasteful number, since it uses less digits than its factorization.

13671370128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21909271 (or 21909265 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

Adding to 13671370128 its reverse (82107317631), we get a palindrome (95778687759).

The spelling of 13671370128 in words is "thirteen billion, six hundred seventy-one million, three hundred seventy thousand, one hundred twenty-eight".