1406782756079 has 4 divisors (see below), whose sum is σ = 1408333785384. Its totient is φ = 1405231726776.

The previous prime is 1406782756063. The next prime is 1406782756109. The reversal of 1406782756079 is 9706572876041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1406782756079 - 2⁴ = 1406782756063 is a prime.

It is a super-2 number, since 2×1406782756079² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406782756679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 775513292 + ... + 775515105.

It is an arithmetic number, because the mean of its divisors is an integer number (352083446346).

Almost surely, 2^{1406782756079} is an apocalyptic number.

1406782756079 is a deficient number, since it is larger than the sum of its proper divisors (1551029305).

1406782756079 is an equidigital number, since it uses as much as digits as its factorization.

1406782756079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551029304.

The product of its (nonzero) digits is 35562240, while the sum is 62.

The spelling of 1406782756079 in words is "one trillion, four hundred six billion, seven hundred eighty-two million, seven hundred fifty-six thousand, seventy-nine".