13394626644 has 96 divisors (see below), whose sum is σ = 36330577920. Its totient is φ = 3761941248.

The previous prime is 13394626643. The next prime is 13394626697. The reversal of 13394626644 is 44662649331.

It is a junction number, because it is equal to n+sod(n) for n = 13394626593 and 13394626602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13394626643) 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, 1541857 + ... + 1550519.

It is an arithmetic number, because the mean of its divisors is an integer number (378443520).

Almost surely, 2^13394626644 is an apocalyptic number.

13394626644 is a gapful number since it is divisible by the number (14) 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 13394626644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18165288960).

13394626644 is an abundant number, since it is smaller than the sum of its proper divisors (22935951276).

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

13394626644 is a wasteful number, since it uses less digits than its factorization.

13394626644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8989 (or 8987 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 48.

The spelling of 13394626644 in words is "thirteen billion, three hundred ninety-four million, six hundred twenty-six thousand, six hundred forty-four".