15982743285 has 64 divisors (see below), whose sum is σ = 30399840000. Its totient is φ = 7943028480.

The previous prime is 15982743251. The next prime is 15982743289. The reversal of 15982743285 is 58234728951.

15982743285 is a `hidden beast` number, since 1 + 5 + 98 + 274 + 3 + 285 = 666.

It is not a de Polignac number, because 15982743285 - 2⁹ = 15982742773 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15982743289) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 105391 + ... + 207539.

It is an arithmetic number, because the mean of its divisors is an integer number (474997500).

Almost surely, 2^15982743285 is an apocalyptic number.

15982743285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15982743285 is a deficient number, since it is larger than the sum of its proper divisors (14417096715).

15982743285 is a wasteful number, since it uses less digits than its factorization.

15982743285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102243 (or 102237 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 15982743285 in words is "fifteen billion, nine hundred eighty-two million, seven hundred forty-three thousand, two hundred eighty-five".