1490666591269 has 2 divisors, whose sum is σ = 1490666591270. Its totient is φ = 1490666591268.

The previous prime is 1490666591209. The next prime is 1490666591311. The reversal of 1490666591269 is 9621956660941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 755574700644 + 735091890625 = 869238^2 + 857375^2 .

It is a cyclic number.

It is not a de Polignac number, because 1490666591269 - 2¹⁷ = 1490666460197 is a prime.

It is a super-2 number, since 2×1490666591269² (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 1490666591269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1490666591209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 745333295634 + 745333295635.

It is an arithmetic number, because the mean of its divisors is an integer number (745333295635).

Almost surely, 2^{1490666591269} is an apocalyptic number.

It is an amenable number.

1490666591269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1490666591269 is an equidigital number, since it uses as much as digits as its factorization.

1490666591269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37791360, while the sum is 64.

The spelling of 1490666591269 in words is "one trillion, four hundred ninety billion, six hundred sixty-six million, five hundred ninety-one thousand, two hundred sixty-nine".