15313435214440 has 128 divisors (see below), whose sum is σ = 38767334469120. Its totient is φ = 5396081152000.

The previous prime is 15313435214431. The next prime is 15313435214443. The reversal of 15313435214440 is 4441253431351.

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 = 15313435214393 and 15313435214402.

It is not an unprimeable number, because it can be changed into a prime (15313435214443) 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, 1577137 + ... + 5754496.

It is an arithmetic number, because the mean of its divisors is an integer number (302869800540).

Almost surely, 2^{15313435214440} is an apocalyptic number.

15313435214440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15313435214440 is an abundant number, since it is smaller than the sum of its proper divisors (23453899254680).

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

15313435214440 is a wasteful number, since it uses less digits than its factorization.

15313435214440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7331803 (or 7331799 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 15313435214440 its reverse (4441253431351), we get a palindrome (19754688645791).

The spelling of 15313435214440 in words is "fifteen trillion, three hundred thirteen billion, four hundred thirty-five million, two hundred fourteen thousand, four hundred forty".