15639872989054 has 8 divisors (see below), whose sum is σ = 23459827148208. Its totient is φ = 7819930606320.

The previous prime is 15639872989049. The next prime is 15639872989061. The reversal of 15639872989054 is 45098927893651.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×15639872989054² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2114239 + ... + 5979109.

It is an arithmetic number, because the mean of its divisors is an integer number (2932478393526).

It is a 1-persistent number, because it is pandigital, but 2⋅15639872989054 = 31279745978108 is not.

Almost surely, 2^{15639872989054} is an apocalyptic number.

15639872989054 is a deficient number, since it is larger than the sum of its proper divisors (7819954159154).

15639872989054 is a wasteful number, since it uses less digits than its factorization.

15639872989054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5888210.

The product of its (nonzero) digits is 1175731200, while the sum is 76.

The spelling of 15639872989054 in words is "fifteen trillion, six hundred thirty-nine billion, eight hundred seventy-two million, nine hundred eighty-nine thousand, fifty-four".