83779667588 has 6 divisors (see below), whose sum is σ = 146614418286. Its totient is φ = 41889833792.

The previous prime is 83779667581. The next prime is 83779667623. The reversal of 83779667588 is 88576697738.

It can be written as a sum of positive squares in only one way, i.e., 58231481344 + 25548186244 = 241312^2 + 159838^2 .

It is not an unprimeable number, because it can be changed into a prime (83779667581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10472458445 + ... + 10472458452.

It is an arithmetic number, because the mean of its divisors is an integer number (24435736381).

Almost surely, 2^83779667588 is an apocalyptic number.

It is an amenable number.

83779667588 is a deficient number, since it is larger than the sum of its proper divisors (62834750698).

83779667588 is a wasteful number, since it uses less digits than its factorization.

83779667588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20944916901 (or 20944916899 counting only the distinct ones).

The product of its digits is 853493760, while the sum is 74.

The spelling of 83779667588 in words is "eighty-three billion, seven hundred seventy-nine million, six hundred sixty-seven thousand, five hundred eighty-eight".