84509015147 has 2 divisors, whose sum is σ = 84509015148. Its totient is φ = 84509015146.

The previous prime is 84509015089. The next prime is 84509015177. The reversal of 84509015147 is 74151090548.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84509015147 - 2³⁴ = 67329145963 is a prime.

It is a super-2 number, since 2×84509015147² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84509015098 and 84509015107.

It is not a weakly prime, because it can be changed into another prime (84509015177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42254507573 + 42254507574.

It is an arithmetic number, because the mean of its divisors is an integer number (42254507574).

Almost surely, 2^84509015147 is an apocalyptic number.

84509015147 is a deficient number, since it is larger than the sum of its proper divisors (1).

84509015147 is an equidigital number, since it uses as much as digits as its factorization.

84509015147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 84509015147 in words is "eighty-four billion, five hundred nine million, fifteen thousand, one hundred forty-seven".