84630040996421 has 2 divisors, whose sum is σ = 84630040996422. Its totient is φ = 84630040996420.

The previous prime is 84630040996411. The next prime is 84630040996453. The reversal of 84630040996421 is 12469904003648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81943592152900 + 2686448843521 = 9052270^2 + 1639039^2 .

It is a cyclic number.

It is not a de Polignac number, because 84630040996421 - 2⁶ = 84630040996357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84630040996411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42315020498210 + 42315020498211.

It is an arithmetic number, because the mean of its divisors is an integer number (42315020498211).

Almost surely, 2^{84630040996421} is an apocalyptic number.

It is an amenable number.

84630040996421 is a deficient number, since it is larger than the sum of its proper divisors (1).

84630040996421 is an equidigital number, since it uses as much as digits as its factorization.

84630040996421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8957952, while the sum is 56.

The spelling of 84630040996421 in words is "eighty-four trillion, six hundred thirty billion, forty million, nine hundred ninety-six thousand, four hundred twenty-one".