489778051 has 16 divisors (see below), whose sum is σ = 566115264. Its totient is φ = 415062144.

The previous prime is 489778043. The next prime is 489778061. The reversal of 489778051 is 150877984.

It is not a de Polignac number, because 489778051 - 2³ = 489778043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 489777986 and 489778004.

It is not an unprimeable number, because it can be changed into a prime (489778001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237541 + ... + 239593.

It is an arithmetic number, because the mean of its divisors is an integer number (35382204).

Almost surely, 2^489778051 is an apocalyptic number.

489778051 is a deficient number, since it is larger than the sum of its proper divisors (76337213).

489778051 is a wasteful number, since it uses less digits than its factorization.

489778051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430.

The product of its (nonzero) digits is 564480, while the sum is 49.

The square root of 489778051 is about 22130.9297364571. The cubic root of 489778051 is about 788.2544651952.

The spelling of 489778051 in words is "four hundred eighty-nine million, seven hundred seventy-eight thousand, fifty-one".