16078786972 has 6 divisors (see below), whose sum is σ = 28137877208. Its totient is φ = 8039393484.

The previous prime is 16078786921. The next prime is 16078786979. The reversal of 16078786972 is 27968787061.

It is a self number, because there is not a number n which added to its sum of digits gives 16078786972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16078786979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2009848368 + ... + 2009848375.

Almost surely, 2^16078786972 is an apocalyptic number.

It is an amenable number.

16078786972 is a deficient number, since it is larger than the sum of its proper divisors (12059090236).

16078786972 is a wasteful number, since it uses less digits than its factorization.

16078786972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4019696747 (or 4019696745 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 61.

The spelling of 16078786972 in words is "sixteen billion, seventy-eight million, seven hundred eighty-six thousand, nine hundred seventy-two".