84759005957 has 2 divisors, whose sum is σ = 84759005958. Its totient is φ = 84759005956.

The previous prime is 84759005951. The next prime is 84759005983. The reversal of 84759005957 is 75950095748.

It is a Cunningham number, because it is equal to 291134²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84759005956 + 1 = 291134^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 84759005957 - 2⁶ = 84759005893 is a prime.

It is a super-2 number, since 2×84759005957² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84759005896 and 84759005905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84759005951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42379502978 + 42379502979.

It is an arithmetic number, because the mean of its divisors is an integer number (42379502979).

Almost surely, 2^84759005957 is an apocalyptic number.

It is an amenable number.

84759005957 is a deficient number, since it is larger than the sum of its proper divisors (1).

84759005957 is an equidigital number, since it uses as much as digits as its factorization.

84759005957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876000, while the sum is 59.

The spelling of 84759005957 in words is "eighty-four billion, seven hundred fifty-nine million, five thousand, nine hundred fifty-seven".