2801138198 has 4 divisors (see below), whose sum is σ = 4201707300. Its totient is φ = 1400569098.

The previous prime is 2801138189. The next prime is 2801138201. The reversal of 2801138198 is 8918311082.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700284548 + ... + 700284551.

It is an arithmetic number, because the mean of its divisors is an integer number (1050426825).

Almost surely, 2^2801138198 is an apocalyptic number.

2801138198 is a deficient number, since it is larger than the sum of its proper divisors (1400569102).

2801138198 is a wasteful number, since it uses less digits than its factorization.

2801138198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400569101.

The product of its (nonzero) digits is 27648, while the sum is 41.

The square root of 2801138198 is about 52925.7800887242. The cubic root of 2801138198 is about 1409.6507020009.

The spelling of 2801138198 in words is "two billion, eight hundred one million, one hundred thirty-eight thousand, one hundred ninety-eight".