1420727323949 has 2 divisors, whose sum is σ = 1420727323950. Its totient is φ = 1420727323948.

The previous prime is 1420727323927. The next prime is 1420727323957. The reversal of 1420727323949 is 9493237270241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 808123687849 + 612603636100 = 898957^2 + 782690^2 .

It is an emirp because it is prime and its reverse (9493237270241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420727323949 - 2¹² = 1420727319853 is a prime.

It is a super-2 number, since 2×1420727323949² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1420727323949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420727323999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710363661974 + 710363661975.

It is an arithmetic number, because the mean of its divisors is an integer number (710363661975).

Almost surely, 2^{1420727323949} is an apocalyptic number.

It is an amenable number.

1420727323949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420727323949 is an equidigital number, since it uses as much as digits as its factorization.

1420727323949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 53.

The spelling of 1420727323949 in words is "one trillion, four hundred twenty billion, seven hundred twenty-seven million, three hundred twenty-three thousand, nine hundred forty-nine".