504780457787551 has 8 divisors (see below), whose sum is σ = 554365359378000. Its totient is φ = 455811517707840.

The previous prime is 504780457787531. The next prime is 504780457787563. The reversal of 504780457787551 is 155787754087405.

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 504780457787551 - 2¹¹ = 504780457785503 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 (504780457787531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153990375966 + ... + 153990379243.

It is an arithmetic number, because the mean of its divisors is an integer number (69295669922250).

Almost surely, 2^{504780457787551} is an apocalyptic number.

504780457787551 is a deficient number, since it is larger than the sum of its proper divisors (49584901590449).

504780457787551 is a wasteful number, since it uses less digits than its factorization.

504780457787551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307980755369.

The product of its (nonzero) digits is 1536640000, while the sum is 73.

The spelling of 504780457787551 in words is "five hundred four trillion, seven hundred eighty billion, four hundred fifty-seven million, seven hundred eighty-seven thousand, five hundred fifty-one".