612388402441 has 2 divisors, whose sum is σ = 612388402442. Its totient is φ = 612388402440.

The previous prime is 612388402433. The next prime is 612388402517. The reversal of 612388402441 is 144204883216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 506310518025 + 106077884416 = 711555^2 + 325696^2 .

It is a cyclic number.

It is not a de Polignac number, because 612388402441 - 2³ = 612388402433 is a prime.

It is not a weakly prime, because it can be changed into another prime (612388400441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306194201220 + 306194201221.

It is an arithmetic number, because the mean of its divisors is an integer number (306194201221).

Almost surely, 2^612388402441 is an apocalyptic number.

It is an amenable number.

612388402441 is a deficient number, since it is larger than the sum of its proper divisors (1).

612388402441 is an equidigital number, since it uses as much as digits as its factorization.

612388402441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294912, while the sum is 43.

The spelling of 612388402441 in words is "six hundred twelve billion, three hundred eighty-eight million, four hundred two thousand, four hundred forty-one".