15423523214412 has 96 divisors (see below), whose sum is σ = 39785372992512. Its totient is φ = 4625642070016.

The previous prime is 15423523214381. The next prime is 15423523214431. The reversal of 15423523214412 is 21441232532451.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6993793 + ... + 8930855.

It is an arithmetic number, because the mean of its divisors is an integer number (414430968672).

Almost surely, 2^{15423523214412} is an apocalyptic number.

15423523214412 is a gapful number since it is divisible by the number (12) 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 15423523214412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19892686496256).

15423523214412 is an abundant number, since it is smaller than the sum of its proper divisors (24361849778100).

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

15423523214412 is a wasteful number, since it uses less digits than its factorization.

15423523214412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938807 (or 1938805 counting only the distinct ones).

The product of its digits is 230400, while the sum is 39.

Adding to 15423523214412 its reverse (21441232532451), we get a palindrome (36864755746863).

The spelling of 15423523214412 in words is "fifteen trillion, four hundred twenty-three billion, five hundred twenty-three million, two hundred fourteen thousand, four hundred twelve".