1018805373 has 6 divisors (see below), whose sum is σ = 1471607774. Its totient is φ = 679203576.

The previous prime is 1018805357. The next prime is 1018805383. The reversal of 1018805373 is 3735088101.

It can be written as a sum of positive squares in only one way, i.e., 981130329 + 37675044 = 31323^2 + 6138^2 .

It is not a de Polignac number, because 1018805373 - 2⁴ = 1018805357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1018805383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56600290 + ... + 56600307.

Almost surely, 2^1018805373 is an apocalyptic number.

It is an amenable number.

1018805373 is a deficient number, since it is larger than the sum of its proper divisors (452802401).

1018805373 is a wasteful number, since it uses less digits than its factorization.

1018805373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113200603 (or 113200600 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 1018805373 is about 31918.7307548405. The cubic root of 1018805373 is about 1006.2295695452.

The spelling of 1018805373 in words is "one billion, eighteen million, eight hundred five thousand, three hundred seventy-three".