15887434535412 has 24 divisors (see below), whose sum is σ = 40440742454112. Its totient is φ = 4814374101600.

The previous prime is 15887434535381. The next prime is 15887434535429. The reversal of 15887434535412 is 21453543478851.

15887434535412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15887434535412² (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 7 ways as a sum of consecutive naturals, for example, 60179676139 + ... + 60179676402.

It is an arithmetic number, because the mean of its divisors is an integer number (1685030935588).

Almost surely, 2^{15887434535412} is an apocalyptic number.

15887434535412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15887434535412 is an abundant number, since it is smaller than the sum of its proper divisors (24553307918700).

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

15887434535412 is a wasteful number, since it uses less digits than its factorization.

15887434535412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120359352559 (or 120359352557 counting only the distinct ones).

The product of its digits is 64512000, while the sum is 60.

The spelling of 15887434535412 in words is "fifteen trillion, eight hundred eighty-seven billion, four hundred thirty-four million, five hundred thirty-five thousand, four hundred twelve".