17900983061 has 8 divisors (see below), whose sum is σ = 19799008824. Its totient is φ = 16077389760.

The previous prime is 17900983039. The next prime is 17900983097. The reversal of 17900983061 is 16038900971.

It can be written as a sum of positive squares in 4 ways, for example, as 7040216836 + 10860766225 = 83906^2 + 104215^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 17900983061 - 2²² = 17896788757 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 (17900982061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18607610 + ... + 18608571.

It is an arithmetic number, because the mean of its divisors is an integer number (2474876103).

Almost surely, 2^17900983061 is an apocalyptic number.

It is an amenable number.

17900983061 is a deficient number, since it is larger than the sum of its proper divisors (1898025763).

17900983061 is a wasteful number, since it uses less digits than its factorization.

17900983061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37216231.

The product of its (nonzero) digits is 81648, while the sum is 44.

The spelling of 17900983061 in words is "seventeen billion, nine hundred million, nine hundred eighty-three thousand, sixty-one".