13401433215 has 24 divisors (see below), whose sum is σ = 23296120848. Its totient is φ = 7126824960.

The previous prime is 13401433211. The next prime is 13401433237. The reversal of 13401433215 is 51233410431.

It is a happy number.

13401433215 is a `hidden beast` number, since 1 + 3 + 401 + 43 + 3 + 215 = 666.

It is not a de Polignac number, because 13401433215 - 2² = 13401433211 is a prime.

It is a super-2 number, since 2×13401433215² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13401433211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 413506 + ... + 444735.

It is an arithmetic number, because the mean of its divisors is an integer number (970671702).

Almost surely, 2^13401433215 is an apocalyptic number.

13401433215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13401433215 is a deficient number, since it is larger than the sum of its proper divisors (9894687633).

13401433215 is a wasteful number, since it uses less digits than its factorization.

13401433215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858599 (or 858596 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 13401433215 its reverse (51233410431), we get a palindrome (64634843646).

The spelling of 13401433215 in words is "thirteen billion, four hundred one million, four hundred thirty-three thousand, two hundred fifteen".