84477367122559 has 2 divisors, whose sum is σ = 84477367122560. Its totient is φ = 84477367122558.

The previous prime is 84477367122553. The next prime is 84477367122581. The reversal of 84477367122559 is 95522176377448.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84477367122559 - 2¹³ = 84477367114367 is a prime.

It is a super-2 number, since 2×84477367122559² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84477367122553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42238683561279 + 42238683561280.

It is an arithmetic number, because the mean of its divisors is an integer number (42238683561280).

Almost surely, 2^{84477367122559} is an apocalyptic number.

84477367122559 is a deficient number, since it is larger than the sum of its proper divisors (1).

84477367122559 is an equidigital number, since it uses as much as digits as its factorization.

84477367122559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 711244800, while the sum is 70.

The spelling of 84477367122559 in words is "eighty-four trillion, four hundred seventy-seven billion, three hundred sixty-seven million, one hundred twenty-two thousand, five hundred fifty-nine".