8420622420619 has 2 divisors, whose sum is σ = 8420622420620. Its totient is φ = 8420622420618.

The previous prime is 8420622420571. The next prime is 8420622420697. The reversal of 8420622420619 is 9160242260248.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8420622420619 - 2²⁷ = 8420488202891 is a prime.

It is a super-2 number, since 2×8420622420619² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8420622450619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4210311210309 + 4210311210310.

It is an arithmetic number, because the mean of its divisors is an integer number (4210311210310).

Almost surely, 2^{8420622420619} is an apocalyptic number.

8420622420619 is a deficient number, since it is larger than the sum of its proper divisors (1).

8420622420619 is an equidigital number, since it uses as much as digits as its factorization.

8420622420619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 8420622420619 in words is "eight trillion, four hundred twenty billion, six hundred twenty-two million, four hundred twenty thousand, six hundred nineteen".