83499999949 has 2 divisors, whose sum is σ = 83499999950. Its totient is φ = 83499999948.

The previous prime is 83499999943. The next prime is 83499999953. The reversal of 83499999949 is 94999999438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63797666724 + 19702333225 = 252582^2 + 140365^2 .

It is a cyclic number.

It is not a de Polignac number, because 83499999949 - 2²³ = 83491611341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83499999943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41749999974 + 41749999975.

It is an arithmetic number, because the mean of its divisors is an integer number (41749999975).

Almost surely, 2^83499999949 is an apocalyptic number.

It is an amenable number.

83499999949 is a deficient number, since it is larger than the sum of its proper divisors (1).

83499999949 is an equidigital number, since it uses as much as digits as its factorization.

83499999949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1836660096, while the sum is 82.

The spelling of 83499999949 in words is "eighty-three billion, four hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred forty-nine".