1699096981973 has 2 divisors, whose sum is σ = 1699096981974. Its totient is φ = 1699096981972.

The previous prime is 1699096981963. The next prime is 1699096982057. The reversal of 1699096981973 is 3791896909961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1576147169809 + 122949812164 = 1255447^2 + 350642^2 .

It is a cyclic number.

It is not a de Polignac number, because 1699096981973 - 2³⁰ = 1698023240149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1699096981894 and 1699096981903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1699096981903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 849548490986 + 849548490987.

It is an arithmetic number, because the mean of its divisors is an integer number (849548490987).

Almost surely, 2^{1699096981973} is an apocalyptic number.

It is an amenable number.

1699096981973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1699096981973 is an equidigital number, since it uses as much as digits as its factorization.

1699096981973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 357128352, while the sum is 77.

The spelling of 1699096981973 in words is "one trillion, six hundred ninety-nine billion, ninety-six million, nine hundred eighty-one thousand, nine hundred seventy-three".