83724388061 has 8 divisors (see below), whose sum is σ = 85005595584. Its totient is φ = 82449668320.

The previous prime is 83724388057. The next prime is 83724388109. The reversal of 83724388061 is 16088342738.

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 83724388061 - 2² = 83724388057 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 (83724388021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1595936 + ... + 1647561.

It is an arithmetic number, because the mean of its divisors is an integer number (10625699448).

Almost surely, 2^83724388061 is an apocalyptic number.

It is an amenable number.

83724388061 is a deficient number, since it is larger than the sum of its proper divisors (1281207523).

83724388061 is a wasteful number, since it uses less digits than its factorization.

83724388061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3243891.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The spelling of 83724388061 in words is "eighty-three billion, seven hundred twenty-four million, three hundred eighty-eight thousand, sixty-one".