84513716501 has 2 divisors, whose sum is σ = 84513716502. Its totient is φ = 84513716500.

The previous prime is 84513716471. The next prime is 84513716509. The reversal of 84513716501 is 10561731548.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53743294276 + 30770422225 = 231826^2 + 175415^2 .

It is a cyclic number.

It is not a de Polignac number, because 84513716501 - 2³⁰ = 83439974677 is a prime.

It is a super-2 number, since 2×84513716501² (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 (84513716509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42256858250 + 42256858251.

It is an arithmetic number, because the mean of its divisors is an integer number (42256858251).

Almost surely, 2^84513716501 is an apocalyptic number.

It is an amenable number.

84513716501 is a deficient number, since it is larger than the sum of its proper divisors (1).

84513716501 is an equidigital number, since it uses as much as digits as its factorization.

84513716501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 84513716501 in words is "eighty-four billion, five hundred thirteen million, seven hundred sixteen thousand, five hundred one".