1406331796769 has 2 divisors, whose sum is σ = 1406331796770. Its totient is φ = 1406331796768.

The previous prime is 1406331796757. The next prime is 1406331796777. The reversal of 1406331796769 is 9676971336041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1238964895744 + 167366901025 = 1113088^2 + 409105^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406331796769 - 2²⁴ = 1406315019553 is a prime.

It is a super-2 number, since 2×1406331796769² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1406331796469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703165898384 + 703165898385.

It is an arithmetic number, because the mean of its divisors is an integer number (703165898385).

Almost surely, 2^{1406331796769} is an apocalyptic number.

It is an amenable number.

1406331796769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406331796769 is an equidigital number, since it uses as much as digits as its factorization.

1406331796769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30862944, while the sum is 62.

The spelling of 1406331796769 in words is "one trillion, four hundred six billion, three hundred thirty-one million, seven hundred ninety-six thousand, seven hundred sixty-nine".