16768321492 has 24 divisors (see below), whose sum is σ = 31608697736. Its totient is φ = 7737545088.

The previous prime is 16768321481. The next prime is 16768321513. The reversal of 16768321492 is 29412386761.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 148986436 + 16619335056 = 12206^2 + 128916^2 .

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, 225238 + ... + 290290.

Almost surely, 2^16768321492 is an apocalyptic number.

It is an amenable number.

16768321492 is a deficient number, since it is larger than the sum of its proper divisors (14840376244).

16768321492 is a wasteful number, since it uses less digits than its factorization.

16768321492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70027 (or 70025 counting only the distinct ones).

The product of its digits is 870912, while the sum is 49.

The spelling of 16768321492 in words is "sixteen billion, seven hundred sixty-eight million, three hundred twenty-one thousand, four hundred ninety-two".