15916843797 has 16 divisors (see below), whose sum is σ = 21683822592. Its totient is φ = 10380751920.

The previous prime is 15916843783. The next prime is 15916843843. The reversal of 15916843797 is 79734861951.

It is not a de Polignac number, because 15916843797 - 2¹⁶ = 15916778261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15916843797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15916843757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301428 + ... + 350274.

It is an arithmetic number, because the mean of its divisors is an integer number (1355238912).

Almost surely, 2^15916843797 is an apocalyptic number.

It is an amenable number.

15916843797 is a deficient number, since it is larger than the sum of its proper divisors (5766978795).

15916843797 is a wasteful number, since it uses less digits than its factorization.

15916843797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51208.

The product of its digits is 11430720, while the sum is 60.

The spelling of 15916843797 in words is "fifteen billion, nine hundred sixteen million, eight hundred forty-three thousand, seven hundred ninety-seven".