83976937172 has 6 divisors (see below), whose sum is σ = 146959640058. Its totient is φ = 41988468584.

The previous prime is 83976937157. The next prime is 83976937183. The reversal of 83976937172 is 27173967938.

It can be written as a sum of positive squares in only one way, i.e., 81175987396 + 2800949776 = 284914^2 + 52924^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10497117143 + ... + 10497117150.

It is an arithmetic number, because the mean of its divisors is an integer number (24493273343).

Almost surely, 2^83976937172 is an apocalyptic number.

It is an amenable number.

83976937172 is a deficient number, since it is larger than the sum of its proper divisors (62982702886).

83976937172 is a wasteful number, since it uses less digits than its factorization.

83976937172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20994234297 (or 20994234295 counting only the distinct ones).

The product of its digits is 24004512, while the sum is 62.

The spelling of 83976937172 in words is "eighty-three billion, nine hundred seventy-six million, nine hundred thirty-seven thousand, one hundred seventy-two".