1780513456117 has 8 divisors (see below), whose sum is σ = 1944258655680. Its totient is φ = 1617081646560.

The previous prime is 1780513456079. The next prime is 1780513456153. The reversal of 1780513456117 is 7116543150871.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1780513456117 - 2³¹ = 1778365972469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1780513456157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78335617 + ... + 78358342.

It is an arithmetic number, because the mean of its divisors is an integer number (243032331960).

Almost surely, 2^{1780513456117} is an apocalyptic number.

It is an amenable number.

1780513456117 is a deficient number, since it is larger than the sum of its proper divisors (163745199563).

1780513456117 is a wasteful number, since it uses less digits than its factorization.

1780513456117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156695003.

The product of its (nonzero) digits is 705600, while the sum is 49.

The spelling of 1780513456117 in words is "one trillion, seven hundred eighty billion, five hundred thirteen million, four hundred fifty-six thousand, one hundred seventeen".