199700000007777 has 24 divisors (see below), whose sum is σ = 288626353479360. Its totient is φ = 133054506263520.

The previous prime is 199700000007731. The next prime is 199700000007811. The reversal of 199700000007777 is 777700000007991.

199700000007777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 199700000007777 - 2⁷ = 199700000007649 is a prime.

It is a super-2 number, since 2×199700000007777² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (199700000000777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1736177374 + ... + 1736292392.

It is an arithmetic number, because the mean of its divisors is an integer number (12026098061640).

Almost surely, 2^{199700000007777} is an apocalyptic number.

It is an amenable number.

199700000007777 is a deficient number, since it is larger than the sum of its proper divisors (88926353471583).

199700000007777 is a wasteful number, since it uses less digits than its factorization.

199700000007777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227573 (or 227570 counting only the distinct ones).

The product of its (nonzero) digits is 1361367, while the sum is 54.

The spelling of 199700000007777 in words is "one hundred ninety-nine trillion, seven hundred billion, seven thousand, seven hundred seventy-seven".