82783544372 has 6 divisors (see below), whose sum is σ = 144871202658. Its totient is φ = 41391772184.

The previous prime is 82783544321. The next prime is 82783544377. The reversal of 82783544372 is 27344538728.

It can be written as a sum of positive squares in only one way, i.e., 46102101796 + 36681442576 = 214714^2 + 191524^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82783544377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10347943043 + ... + 10347943050.

It is an arithmetic number, because the mean of its divisors is an integer number (24145200443).

Almost surely, 2^82783544372 is an apocalyptic number.

It is an amenable number.

82783544372 is a deficient number, since it is larger than the sum of its proper divisors (62087658286).

82783544372 is a wasteful number, since it uses less digits than its factorization.

82783544372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20695886097 (or 20695886095 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 53.

The spelling of 82783544372 in words is "eighty-two billion, seven hundred eighty-three million, five hundred forty-four thousand, three hundred seventy-two".