83932780898 has 6 divisors (see below), whose sum is σ = 125899785921. Its totient is φ = 41966185592.

The previous prime is 83932780871. The next prime is 83932780901. The reversal of 83932780898 is 89808723938.

It can be written as a sum of positive squares in 2 ways, for example, as 65519105089 + 18413675809 = 255967^2 + 135697^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=204857.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 307286 + ... + 512142.

Almost surely, 2^83932780898 is an apocalyptic number.

83932780898 is a deficient number, since it is larger than the sum of its proper divisors (41967005023).

83932780898 is an frugal number, since it uses more digits than its factorization.

83932780898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409716 (or 204859 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 65.

The spelling of 83932780898 in words is "eighty-three billion, nine hundred thirty-two million, seven hundred eighty thousand, eight hundred ninety-eight".