2198777793 has 16 divisors (see below), whose sum is σ = 3132069120. Its totient is φ = 1367972496.

The previous prime is 2198777761. The next prime is 2198777809. The reversal of 2198777793 is 3977778912.

It is not a de Polignac number, because 2198777793 - 2⁵ = 2198777761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2198773793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284055 + ... + 291692.

It is an arithmetic number, because the mean of its divisors is an integer number (195754320).

Almost surely, 2^2198777793 is an apocalyptic number.

It is an amenable number.

2198777793 is a deficient number, since it is larger than the sum of its proper divisors (933291327).

2198777793 is a wasteful number, since it uses less digits than its factorization.

2198777793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575836.

The product of its digits is 9335088, while the sum is 60.

The square root of 2198777793 is about 46891.1270178058. The cubic root of 2198777793 is about 1300.3505549686.

The spelling of 2198777793 in words is "two billion, one hundred ninety-eight million, seven hundred seventy-seven thousand, seven hundred ninety-three".