84809364407 has 2 divisors, whose sum is σ = 84809364408. Its totient is φ = 84809364406.

The previous prime is 84809364401. The next prime is 84809364427. The reversal of 84809364407 is 70446390848.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84809364407 - 2¹⁴ = 84809348023 is a prime.

It is a super-2 number, since 2×84809364407² (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 (84809364401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42404682203 + 42404682204.

It is an arithmetic number, because the mean of its divisors is an integer number (42404682204).

Almost surely, 2^84809364407 is an apocalyptic number.

84809364407 is a deficient number, since it is larger than the sum of its proper divisors (1).

84809364407 is an equidigital number, since it uses as much as digits as its factorization.

84809364407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 84809364407 in words is "eighty-four billion, eight hundred nine million, three hundred sixty-four thousand, four hundred seven".