1863701045 has 4 divisors (see below), whose sum is σ = 2236441260. Its totient is φ = 1490960832.

The previous prime is 1863700987. The next prime is 1863701101. The reversal of 1863701045 is 5401073681.

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

It can be written as a sum of positive squares in 2 ways, for example, as 540051121 + 1323649924 = 23239^2 + 36382^2 .

It is a cyclic number.

It is not a de Polignac number, because 1863701045 - 2⁸ = 1863700789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1863700996 and 1863701014.

It is a congruent number.

It is an unprimeable number.

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, 186370100 + ... + 186370109.

It is an arithmetic number, because the mean of its divisors is an integer number (559110315).

Almost surely, 2^1863701045 is an apocalyptic number.

It is an amenable number.

1863701045 is a deficient number, since it is larger than the sum of its proper divisors (372740215).

1863701045 is an equidigital number, since it uses as much as digits as its factorization.

1863701045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372740214.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 1863701045 is about 43170.6039452774. The cubic root of 1863701045 is about 1230.6241010629.

The spelling of 1863701045 in words is "one billion, eight hundred sixty-three million, seven hundred one thousand, forty-five".