15423043553544 has 48 divisors (see below), whose sum is σ = 42381503987760. Its totient is φ = 4673649560800.

The previous prime is 15423043553503. The next prime is 15423043553569. The reversal of 15423043553544 is 44535534032451.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 15423043553493 and 15423043553502.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2655479802 + ... + 2655485609.

It is an arithmetic number, because the mean of its divisors is an integer number (882947999745).

Almost surely, 2^{15423043553544} is an apocalyptic number.

It is an amenable number.

15423043553544 is an abundant number, since it is smaller than the sum of its proper divisors (26958460434216).

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

15423043553544 is a wasteful number, since it uses less digits than its factorization.

15423043553544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5310965442 (or 5310965427 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 48.

Adding to 15423043553544 its reverse (44535534032451), we get a palindrome (59958577585995).

The spelling of 15423043553544 in words is "fifteen trillion, four hundred twenty-three billion, forty-three million, five hundred fifty-three thousand, five hundred forty-four".