16787530537 has 2 divisors, whose sum is σ = 16787530538. Its totient is φ = 16787530536.

The previous prime is 16787530511. The next prime is 16787530553. The reversal of 16787530537 is 73503578761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15676041616 + 1111488921 = 125204^2 + 33339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16787530537 is a prime.

It is not a weakly prime, because it can be changed into another prime (16787530637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8393765268 + 8393765269.

It is an arithmetic number, because the mean of its divisors is an integer number (8393765269).

Almost surely, 2^16787530537 is an apocalyptic number.

It is an amenable number.

16787530537 is a deficient number, since it is larger than the sum of its proper divisors (1).

16787530537 is an equidigital number, since it uses as much as digits as its factorization.

16787530537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3704400, while the sum is 52.

The spelling of 16787530537 in words is "sixteen billion, seven hundred eighty-seven million, five hundred thirty thousand, five hundred thirty-seven".