1699774492516 has 9 divisors (see below), whose sum is σ = 2974609925049. Its totient is φ = 849885942504.

The previous prime is 1699774492489. The next prime is 1699774492517. The reversal of 1699774492516 is 6152944779961.

The square root of 1699774492516 is 1303754.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1127185656100 + 572588836416 = 1061690^2 + 756696^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1699774492517) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2281570 + ... + 2933446.

Almost surely, 2^{1699774492516} is an apocalyptic number.

1699774492516 is the 1303754-th square number.

It is an amenable number.

1699774492516 is a deficient number, since it is larger than the sum of its proper divisors (1274835432533).

1699774492516 is an frugal number, since it uses more digits than its factorization.

1699774492516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303758 (or 651879 counting only the distinct ones).

The product of its digits is 205752960, while the sum is 70.

The spelling of 1699774492516 in words is "one trillion, six hundred ninety-nine billion, seven hundred seventy-four million, four hundred ninety-two thousand, five hundred sixteen".