612061004389 has 2 divisors, whose sum is σ = 612061004390. Its totient is φ = 612061004388.

The previous prime is 612061004369. The next prime is 612061004441. The reversal of 612061004389 is 983400160216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 599940095364 + 12120909025 = 774558^2 + 110095^2 .

It is a cyclic number.

It is not a de Polignac number, because 612061004389 - 2²³ = 612052615781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612061004309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306030502194 + 306030502195.

It is an arithmetic number, because the mean of its divisors is an integer number (306030502195).

Almost surely, 2^612061004389 is an apocalyptic number.

It is an amenable number.

612061004389 is a deficient number, since it is larger than the sum of its proper divisors (1).

612061004389 is an equidigital number, since it uses as much as digits as its factorization.

612061004389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 612061004389 in words is "six hundred twelve billion, sixty-one million, four thousand, three hundred eighty-nine".