1420727323957 has 2 divisors, whose sum is σ = 1420727323958. Its totient is φ = 1420727323956.

The previous prime is 1420727323949. The next prime is 1420727323963. The reversal of 1420727323957 is 7593237270241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1043419347441 + 377307976516 = 1021479^2 + 614254^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420727323957 - 2³ = 1420727323949 is a prime.

It is a super-2 number, since 2×1420727323957² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420727323927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710363661978 + 710363661979.

It is an arithmetic number, because the mean of its divisors is an integer number (710363661979).

Almost surely, 2^{1420727323957} is an apocalyptic number.

It is an amenable number.

1420727323957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420727323957 is an equidigital number, since it uses as much as digits as its factorization.

1420727323957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4445280, while the sum is 52.

The spelling of 1420727323957 in words is "one trillion, four hundred twenty billion, seven hundred twenty-seven million, three hundred twenty-three thousand, nine hundred fifty-seven".