16728037357 has 2 divisors, whose sum is σ = 16728037358. Its totient is φ = 16728037356.

The previous prime is 16728037309. The next prime is 16728037369. The reversal of 16728037357 is 75373082761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13253995876 + 3474041481 = 115126^2 + 58941^2 .

It is a cyclic number.

It is not a de Polignac number, because 16728037357 - 2²³ = 16719648749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16728037357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16728037457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8364018678 + 8364018679.

It is an arithmetic number, because the mean of its divisors is an integer number (8364018679).

Almost surely, 2^16728037357 is an apocalyptic number.

It is an amenable number.

16728037357 is a deficient number, since it is larger than the sum of its proper divisors (1).

16728037357 is an equidigital number, since it uses as much as digits as its factorization.

16728037357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1481760, while the sum is 49.

The spelling of 16728037357 in words is "sixteen billion, seven hundred twenty-eight million, thirty-seven thousand, three hundred fifty-seven".