13401421536 has 192 divisors, whose sum is σ = 37231488000. Its totient is φ = 4214784000.

The previous prime is 13401421531. The next prime is 13401421577. The reversal of 13401421536 is 63512410431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13401421531) 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, 29847040 + ... + 29847488.

It is an arithmetic number, because the mean of its divisors is an integer number (193914000).

Almost surely, 2^13401421536 is an apocalyptic number.

13401421536 is a gapful number since it is divisible by the number (16) 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 13401421536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18615744000).

13401421536 is an abundant number, since it is smaller than the sum of its proper divisors (23830066464).

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

13401421536 is a wasteful number, since it uses less digits than its factorization.

13401421536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 13401421536 its reverse (63512410431), we get a palindrome (76913831967).

The spelling of 13401421536 in words is "thirteen billion, four hundred one million, four hundred twenty-one thousand, five hundred thirty-six".