16371779493 has 16 divisors (see below), whose sum is σ = 21956493312. Its totient is φ = 10850862000.

The previous prime is 16371779491. The next prime is 16371779503. The reversal of 16371779493 is 39497717361.

It is not a de Polignac number, because 16371779493 - 2¹ = 16371779491 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 (16371779491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1064448 + ... + 1079718.

It is an arithmetic number, because the mean of its divisors is an integer number (1372280832).

Almost surely, 2^16371779493 is an apocalyptic number.

It is an amenable number.

16371779493 is a deficient number, since it is larger than the sum of its proper divisors (5584713819).

16371779493 is a wasteful number, since it uses less digits than its factorization.

16371779493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17336.

The product of its digits is 6001128, while the sum is 57.

The spelling of 16371779493 in words is "sixteen billion, three hundred seventy-one million, seven hundred seventy-nine thousand, four hundred ninety-three".