618416420627 has 2 divisors, whose sum is σ = 618416420628. Its totient is φ = 618416420626.

The previous prime is 618416420621. The next prime is 618416420647. The reversal of 618416420627 is 726024614816.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 618416420627 - 2⁶ = 618416420563 is a prime.

It is a super-4 number, since 4×618416420627⁴ (a number of 48 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (618416420621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309208210313 + 309208210314.

It is an arithmetic number, because the mean of its divisors is an integer number (309208210314).

Almost surely, 2^618416420627 is an apocalyptic number.

618416420627 is a deficient number, since it is larger than the sum of its proper divisors (1).

618416420627 is an equidigital number, since it uses as much as digits as its factorization.

618416420627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 618416420627 in words is "six hundred eighteen billion, four hundred sixteen million, four hundred twenty thousand, six hundred twenty-seven".