83719263872 has 32 divisors (see below), whose sum is σ = 172535667300. Its totient is φ = 40416194560.

The previous prime is 83719263871. The next prime is 83719263917. The reversal of 83719263872 is 27836291738.

It can be written as a sum of positive squares in 2 ways, for example, as 81261484096 + 2457779776 = 285064^2 + 49576^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (83719263871) by changing a digit.

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, 11273129 + ... + 11280552.

Almost surely, 2^83719263872 is an apocalyptic number.

It is an amenable number.

83719263872 is an abundant number, since it is smaller than the sum of its proper divisors (88816403428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83719263872 is a wasteful number, since it uses less digits than its factorization.

83719263872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22553724 (or 22553712 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 56.

The spelling of 83719263872 in words is "eighty-three billion, seven hundred nineteen million, two hundred sixty-three thousand, eight hundred seventy-two".