618884906147 has 2 divisors, whose sum is σ = 618884906148. Its totient is φ = 618884906146.

The previous prime is 618884906113. The next prime is 618884906209. The reversal of 618884906147 is 741609488816.

It is an a-pointer prime, because the next prime (618884906209) can be obtained adding 618884906147 to its sum of digits (62).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 618884906147 - 2²² = 618880711843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 618884906147.

It is not a weakly prime, because it can be changed into another prime (618884902147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309442453073 + 309442453074.

It is an arithmetic number, because the mean of its divisors is an integer number (309442453074).

Almost surely, 2^618884906147 is an apocalyptic number.

618884906147 is a deficient number, since it is larger than the sum of its proper divisors (1).

618884906147 is an equidigital number, since it uses as much as digits as its factorization.

618884906147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18579456, while the sum is 62.

The spelling of 618884906147 in words is "six hundred eighteen billion, eight hundred eighty-four million, nine hundred six thousand, one hundred forty-seven".