83761538002018 has 16 divisors (see below), whose sum is σ = 126148850539704. Its totient is φ = 41712048161280.

The previous prime is 83761538002007. The next prime is 83761538002061. The reversal of 83761538002018 is 81020083516738.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5103139734169 + 78658398267849 = 2259013^2 + 8868957^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30431055 + ... + 33069202.

Almost surely, 2^{83761538002018} is an apocalyptic number.

83761538002018 is a deficient number, since it is larger than the sum of its proper divisors (42387312537686).

83761538002018 is a wasteful number, since it uses less digits than its factorization.

83761538002018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63502917.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 83761538002018 in words is "eighty-three trillion, seven hundred sixty-one billion, five hundred thirty-eight million, two thousand, eighteen".