84059696957 has 2 divisors, whose sum is σ = 84059696958. Its totient is φ = 84059696956.

The previous prime is 84059696947. The next prime is 84059696971. The reversal of 84059696957 is 75969695048.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79268150116 + 4791546841 = 281546^2 + 69221^2 .

It is a cyclic number.

It is not a de Polignac number, because 84059696957 - 2¹² = 84059692861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84059696947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42029848478 + 42029848479.

It is an arithmetic number, because the mean of its divisors is an integer number (42029848479).

Almost surely, 2^84059696957 is an apocalyptic number.

It is an amenable number.

84059696957 is a deficient number, since it is larger than the sum of its proper divisors (1).

84059696957 is an equidigital number, since it uses as much as digits as its factorization.

84059696957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 146966400, while the sum is 68.

The spelling of 84059696957 in words is "eighty-four billion, fifty-nine million, six hundred ninety-six thousand, nine hundred fifty-seven".