612288888889 has 2 divisors, whose sum is σ = 612288888890. Its totient is φ = 612288888888.

The previous prime is 612288888877. The next prime is 612288888907. The reversal of 612288888889 is 988888882216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 451100289600 + 161188599289 = 671640^2 + 401483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612288888889 is a prime.

It is not a weakly prime, because it can be changed into another prime (612288885889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306144444444 + 306144444445.

It is an arithmetic number, because the mean of its divisors is an integer number (306144444445).

Almost surely, 2^612288888889 is an apocalyptic number.

It is an amenable number.

612288888889 is a deficient number, since it is larger than the sum of its proper divisors (1).

612288888889 is an equidigital number, since it uses as much as digits as its factorization.

612288888889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 452984832, while the sum is 76.

The spelling of 612288888889 in words is "six hundred twelve billion, two hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred eighty-nine".