84650412256519 has 2 divisors, whose sum is σ = 84650412256520. Its totient is φ = 84650412256518.

The previous prime is 84650412256351. The next prime is 84650412256523. The reversal of 84650412256519 is 91565221405648.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84650412256519 - 2³¹ = 84648264772871 is a prime.

It is a super-2 number, since 2×84650412256519² (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 (84650412250519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42325206128259 + 42325206128260.

It is an arithmetic number, because the mean of its divisors is an integer number (42325206128260).

Almost surely, 2^{84650412256519} is an apocalyptic number.

84650412256519 is a deficient number, since it is larger than the sum of its proper divisors (1).

84650412256519 is an equidigital number, since it uses as much as digits as its factorization.

84650412256519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736000, while the sum is 58.

The spelling of 84650412256519 in words is "eighty-four trillion, six hundred fifty billion, four hundred twelve million, two hundred fifty-six thousand, five hundred nineteen".