15438488126068 has 24 divisors (see below), whose sum is σ = 30877688520000. Its totient is φ = 6616342282368.

The previous prime is 15438488126063. The next prime is 15438488126101. The reversal of 15438488126068 is 86062188483451.

It is a super-2 number, since 2×15438488126068² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15438488126063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5119813 + ... + 7555756.

It is an arithmetic number, because the mean of its divisors is an integer number (1286570355000).

Almost surely, 2^{15438488126068} is an apocalyptic number.

It is an amenable number.

15438488126068 is an abundant number, since it is smaller than the sum of its proper divisors (15439200393932).

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

15438488126068 is a wasteful number, since it uses less digits than its factorization.

15438488126068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12719079 (or 12719077 counting only the distinct ones).

The product of its (nonzero) digits is 70778880, while the sum is 64.

The spelling of 15438488126068 in words is "fifteen trillion, four hundred thirty-eight billion, four hundred eighty-eight million, one hundred twenty-six thousand, sixty-eight".