612250378357 has 2 divisors, whose sum is σ = 612250378358. Its totient is φ = 612250378356.

The previous prime is 612250378321. The next prime is 612250378379. The reversal of 612250378357 is 753873052216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 397516379121 + 214733999236 = 630489^2 + 463394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612250378357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 612250378357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612200378357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306125189178 + 306125189179.

It is an arithmetic number, because the mean of its divisors is an integer number (306125189179).

Almost surely, 2^612250378357 is an apocalyptic number.

It is an amenable number.

612250378357 is a deficient number, since it is larger than the sum of its proper divisors (1).

612250378357 is an equidigital number, since it uses as much as digits as its factorization.

612250378357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 612250378357 in words is "six hundred twelve billion, two hundred fifty million, three hundred seventy-eight thousand, three hundred fifty-seven".