1420704276457 has 2 divisors, whose sum is σ = 1420704276458. Its totient is φ = 1420704276456.

The previous prime is 1420704276443. The next prime is 1420704276469. The reversal of 1420704276457 is 7546724070241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1419538805136 + 1165471321 = 1191444^2 + 34139^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420704276457 - 2¹⁵ = 1420704243689 is a prime.

It is a super-2 number, since 2×1420704276457² (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 1420704276457.

It is not a weakly prime, because it can be changed into another prime (1420704276157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710352138228 + 710352138229.

It is an arithmetic number, because the mean of its divisors is an integer number (710352138229).

Almost surely, 2^{1420704276457} is an apocalyptic number.

It is an amenable number.

1420704276457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420704276457 is an equidigital number, since it uses as much as digits as its factorization.

1420704276457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2634240, while the sum is 49.

The spelling of 1420704276457 in words is "one trillion, four hundred twenty billion, seven hundred four million, two hundred seventy-six thousand, four hundred fifty-seven".