83700778872668 has 48 divisors (see below), whose sum is σ = 155190267429120. Its totient is φ = 39363807465216.

The previous prime is 83700778872647. The next prime is 83700778872701. The reversal of 83700778872668 is 86627887700738.

83700778872668 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1228204571 + ... + 1228272717.

It is an arithmetic number, because the mean of its divisors is an integer number (3233130571440).

Almost surely, 2^{83700778872668} is an apocalyptic number.

It is an amenable number.

83700778872668 is a deficient number, since it is larger than the sum of its proper divisors (71489488556452).

83700778872668 is a wasteful number, since it uses less digits than its factorization.

83700778872668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79274 (or 79272 counting only the distinct ones).

The product of its (nonzero) digits is 2124251136, while the sum is 77.

The spelling of 83700778872668 in words is "eighty-three trillion, seven hundred billion, seven hundred seventy-eight million, eight hundred seventy-two thousand, six hundred sixty-eight".