83977947336 has 16 divisors (see below), whose sum is σ = 209944868400. Its totient is φ = 27992649104.

The previous prime is 83977947329. The next prime is 83977947367. The reversal of 83977947336 is 63374977938.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1749540546 + ... + 1749540593.

It is an arithmetic number, because the mean of its divisors is an integer number (13121554275).

Almost surely, 2^83977947336 is an apocalyptic number.

It is an amenable number.

83977947336 is an abundant number, since it is smaller than the sum of its proper divisors (125966921064).

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

83977947336 is a wasteful number, since it uses less digits than its factorization.

83977947336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3499081148 (or 3499081144 counting only the distinct ones).

The product of its digits is 144027072, while the sum is 66.

The spelling of 83977947336 in words is "eighty-three billion, nine hundred seventy-seven million, nine hundred forty-seven thousand, three hundred thirty-six".