83630154857 has 2 divisors, whose sum is σ = 83630154858. Its totient is φ = 83630154856.

The previous prime is 83630154823. The next prime is 83630154911. The reversal of 83630154857 is 75845103638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68474328976 + 15155825881 = 261676^2 + 123109^2 .

It is a cyclic number.

It is not a de Polignac number, because 83630154857 - 2¹⁰ = 83630153833 is a prime.

It is not a weakly prime, because it can be changed into another prime (83630157857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41815077428 + 41815077429.

It is an arithmetic number, because the mean of its divisors is an integer number (41815077429).

Almost surely, 2^83630154857 is an apocalyptic number.

It is an amenable number.

83630154857 is a deficient number, since it is larger than the sum of its proper divisors (1).

83630154857 is an equidigital number, since it uses as much as digits as its factorization.

83630154857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 83630154857 in words is "eighty-three billion, six hundred thirty million, one hundred fifty-four thousand, eight hundred fifty-seven".