612878106329 has 2 divisors, whose sum is σ = 612878106330. Its totient is φ = 612878106328.

The previous prime is 612878106307. The next prime is 612878106353. The reversal of 612878106329 is 923601878216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 609723599104 + 3154507225 = 780848^2 + 56165^2 .

It is a cyclic number.

It is not a de Polignac number, because 612878106329 - 2¹² = 612878102233 is a prime.

It is not a weakly prime, because it can be changed into another prime (612878186329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306439053164 + 306439053165.

It is an arithmetic number, because the mean of its divisors is an integer number (306439053165).

Almost surely, 2^612878106329 is an apocalyptic number.

It is an amenable number.

612878106329 is a deficient number, since it is larger than the sum of its proper divisors (1).

612878106329 is an equidigital number, since it uses as much as digits as its factorization.

612878106329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 612878106329 in words is "six hundred twelve billion, eight hundred seventy-eight million, one hundred six thousand, three hundred twenty-nine".