13147343746520 has 32 divisors (see below), whose sum is σ = 31321613044800. Its totient is φ = 4949588233728.

The previous prime is 13147343746513. The next prime is 13147343746543. The reversal of 13147343746520 is 2564734374131.

It is a super-2 number, since 2×13147343746520² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9667163840 + ... + 9667165199.

It is an arithmetic number, because the mean of its divisors is an integer number (978800407650).

Almost surely, 2^{13147343746520} is an apocalyptic number.

13147343746520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13147343746520 is an abundant number, since it is smaller than the sum of its proper divisors (18174269298280).

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

13147343746520 is a wasteful number, since it uses less digits than its factorization.

13147343746520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19334329067 (or 19334329063 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 50.

The spelling of 13147343746520 in words is "thirteen trillion, one hundred forty-seven billion, three hundred forty-three million, seven hundred forty-six thousand, five hundred twenty".