13250244124840 has 128 divisors (see below), whose sum is σ = 30242944650240. Its totient is φ = 5223986159616.

The previous prime is 13250244124807. The next prime is 13250244124841. The reversal of 13250244124840 is 4842144205231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 13250244124793 and 13250244124802.

It is not an unprimeable number, because it can be changed into a prime (13250244124841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4073236654 + ... + 4073239906.

It is an arithmetic number, because the mean of its divisors is an integer number (236273005080).

Almost surely, 2^{13250244124840} is an apocalyptic number.

13250244124840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13250244124840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15121472325120).

13250244124840 is an abundant number, since it is smaller than the sum of its proper divisors (16992700525400).

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

13250244124840 is a wasteful number, since it uses less digits than its factorization.

13250244124840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5843 (or 5839 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 40.

The spelling of 13250244124840 in words is "thirteen trillion, two hundred fifty billion, two hundred forty-four million, one hundred twenty-four thousand, eight hundred forty".