1870368545 has 16 divisors (see below), whose sum is σ = 2301557328. Its totient is φ = 1458293760.

The previous prime is 1870368527. The next prime is 1870368547. The reversal of 1870368545 is 5458630781.

It can be written as a sum of positive squares in 8 ways, for example, as 35188624 + 1835179921 = 5932^2 + 42839^2 .

It is not a de Polignac number, because 1870368545 - 2⁶ = 1870368481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1870368545.

It is not an unprimeable number, because it can be changed into a prime (1870368547) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 220727 + ... + 229043.

It is an arithmetic number, because the mean of its divisors is an integer number (143847333).

Almost surely, 2^1870368545 is an apocalyptic number.

It is an amenable number.

1870368545 is a deficient number, since it is larger than the sum of its proper divisors (431188783).

1870368545 is a wasteful number, since it uses less digits than its factorization.

1870368545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9460.

The product of its (nonzero) digits is 806400, while the sum is 47.

The square root of 1870368545 is about 43247.7576875380. The cubic root of 1870368545 is about 1232.0898978032.

The spelling of 1870368545 in words is "one billion, eight hundred seventy million, three hundred sixty-eight thousand, five hundred forty-five".