13815310812 has 48 divisors (see below), whose sum is σ = 33359088000. Its totient is φ = 4444735680.

The previous prime is 13815310811. The next prime is 13815310813. The reversal of 13815310812 is 21801351831.

It is an interprime number because it is at equal distance from previous prime (13815310811) and next prime (13815310813).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13815310811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1362939 + ... + 1373037.

It is an arithmetic number, because the mean of its divisors is an integer number (694981000).

Almost surely, 2^13815310812 is an apocalyptic number.

13815310812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13815310812 is an abundant number, since it is smaller than the sum of its proper divisors (19543777188).

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

13815310812 is a wasteful number, since it uses less digits than its factorization.

13815310812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14066 (or 14064 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The spelling of 13815310812 in words is "thirteen billion, eight hundred fifteen million, three hundred ten thousand, eight hundred twelve".