84613893929 has 2 divisors, whose sum is σ = 84613893930. Its totient is φ = 84613893928.

The previous prime is 84613893893. The next prime is 84613894019. The reversal of 84613893929 is 92939831648.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65658937600 + 18954956329 = 256240^2 + 137677^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84613893929 is a prime.

It is a super-2 number, since 2×84613893929² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84613893629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42306946964 + 42306946965.

It is an arithmetic number, because the mean of its divisors is an integer number (42306946965).

Almost surely, 2^84613893929 is an apocalyptic number.

It is an amenable number.

84613893929 is a deficient number, since it is larger than the sum of its proper divisors (1).

84613893929 is an equidigital number, since it uses as much as digits as its factorization.

84613893929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20155392, while the sum is 62.

The spelling of 84613893929 in words is "eighty-four billion, six hundred thirteen million, eight hundred ninety-three thousand, nine hundred twenty-nine".