550787788651 has 4 divisors (see below), whose sum is σ = 568555136704. Its totient is φ = 533020440600.

The previous prime is 550787788633. The next prime is 550787788699. The reversal of 550787788651 is 156887787055.

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 550787788651 - 2¹⁷ = 550787657579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550787782651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8883673980 + ... + 8883674041.

It is an arithmetic number, because the mean of its divisors is an integer number (142138784176).

Almost surely, 2^550787788651 is an apocalyptic number.

550787788651 is a deficient number, since it is larger than the sum of its proper divisors (17767348053).

550787788651 is a wasteful number, since it uses less digits than its factorization.

550787788651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17767348052.

The product of its (nonzero) digits is 131712000, while the sum is 67.

The spelling of 550787788651 in words is "five hundred fifty billion, seven hundred eighty-seven million, seven hundred eighty-eight thousand, six hundred fifty-one".