418950220987 has 2 divisors, whose sum is σ = 418950220988. Its totient is φ = 418950220986.

The previous prime is 418950220961. The next prime is 418950221009. The reversal of 418950220987 is 789022059814.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-418950220987 is a prime.

It is a super-2 number, since 2×418950220987² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (418950220907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209475110493 + 209475110494.

It is an arithmetic number, because the mean of its divisors is an integer number (209475110494).

Almost surely, 2^418950220987 is an apocalyptic number.

418950220987 is a deficient number, since it is larger than the sum of its proper divisors (1).

418950220987 is an equidigital number, since it uses as much as digits as its factorization.

418950220987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 418950220987 in words is "four hundred eighteen billion, nine hundred fifty million, two hundred twenty thousand, nine hundred eighty-seven".