1780603505023 has 8 divisors (see below), whose sum is σ = 2036132341760. Its totient is φ = 1525363895160.

The previous prime is 1780603505017. The next prime is 1780603505053. The reversal of 1780603505023 is 3205053060871.

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

It is not a de Polignac number, because 1780603505023 - 2¹³ = 1780603496831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1780603505053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72293523 + ... + 72318148.

It is an arithmetic number, because the mean of its divisors is an integer number (254516542720).

Almost surely, 2^{1780603505023} is an apocalyptic number.

1780603505023 is a deficient number, since it is larger than the sum of its proper divisors (255528836737).

1780603505023 is a wasteful number, since it uses less digits than its factorization.

1780603505023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144613437.

The product of its (nonzero) digits is 151200, while the sum is 40.

Adding to 1780603505023 its reverse (3205053060871), we get a palindrome (4985656565894).

The spelling of 1780603505023 in words is "one trillion, seven hundred eighty billion, six hundred three million, five hundred five thousand, twenty-three".