2690198783 has 4 divisors (see below), whose sum is σ = 2690345040. Its totient is φ = 2690052528.

The previous prime is 2690198767. The next prime is 2690198801. The reversal of 2690198783 is 3878910962.

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

It is a cyclic number.

It is not a de Polignac number, because 2690198783 - 2⁴ = 2690198767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2690198713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40763 + ... + 83916.

It is an arithmetic number, because the mean of its divisors is an integer number (672586260).

Almost surely, 2^2690198783 is an apocalyptic number.

2690198783 is a deficient number, since it is larger than the sum of its proper divisors (146257).

2690198783 is a wasteful number, since it uses less digits than its factorization.

2690198783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146256.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 2690198783 is about 51867.1262265416. The cubic root of 2690198783 is about 1390.7896730956.

The spelling of 2690198783 in words is "two billion, six hundred ninety million, one hundred ninety-eight thousand, seven hundred eighty-three".