2045377186 has 4 divisors (see below), whose sum is σ = 3068065782. Its totient is φ = 1022688592.

The previous prime is 2045377133. The next prime is 2045377223. The reversal of 2045377186 is 6817735402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6817735402 = 2 ⋅3408867701.

It can be written as a sum of positive squares in only one way, i.e., 1920630625 + 124746561 = 43825^2 + 11169^2 .

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, 511344295 + ... + 511344298.

Almost surely, 2^2045377186 is an apocalyptic number.

2045377186 is a deficient number, since it is larger than the sum of its proper divisors (1022688596).

2045377186 is a wasteful number, since it uses less digits than its factorization.

2045377186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022688595.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 2045377186 is about 45225.8464376290. The cubic root of 2045377186 is about 1269.3784930969.

The spelling of 2045377186 in words is "two billion, forty-five million, three hundred seventy-seven thousand, one hundred eighty-six".