84671999983 has 2 divisors, whose sum is σ = 84671999984. Its totient is φ = 84671999982.

The previous prime is 84671999957. The next prime is 84672000019. The reversal of 84671999983 is 38999917648.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84671999983 is a prime.

It is a super-2 number, since 2×84671999983² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84671999903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42335999991 + 42335999992.

It is an arithmetic number, because the mean of its divisors is an integer number (42335999992).

Almost surely, 2^84671999983 is an apocalyptic number.

84671999983 is a deficient number, since it is larger than the sum of its proper divisors (1).

84671999983 is an equidigital number, since it uses as much as digits as its factorization.

84671999983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211631616, while the sum is 73.

The spelling of 84671999983 in words is "eighty-four billion, six hundred seventy-one million, nine hundred ninety-nine thousand, nine hundred eighty-three".