2199779950 has 24 divisors (see below), whose sum is σ = 4095911952. Its totient is φ = 878982720.

The previous prime is 2199779947. The next prime is 2199779971. The reversal of 2199779950 is 599779912.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25602 + ... + 71098.

It is an arithmetic number, because the mean of its divisors is an integer number (170662998).

Almost surely, 2^2199779950 is an apocalyptic number.

2199779950 is a deficient number, since it is larger than the sum of its proper divisors (1896132002).

2199779950 is a wasteful number, since it uses less digits than its factorization.

2199779950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46476 (or 46471 counting only the distinct ones).

The product of its (nonzero) digits is 3214890, while the sum is 58.

The square root of 2199779950 is about 46901.8117986928. The cubic root of 2199779950 is about 1300.5480825044.

The spelling of 2199779950 in words is "two billion, one hundred ninety-nine million, seven hundred seventy-nine thousand, nine hundred fifty".