478865051 has 4 divisors (see below), whose sum is σ = 547274352. Its totient is φ = 410455752.

The previous prime is 478865021. The next prime is 478865087. The reversal of 478865051 is 150568874.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 478865051 - 2⁶ = 478864987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 478864993 and 478865011.

It is not an unprimeable number, because it can be changed into a prime (478865011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34204640 + ... + 34204653.

It is an arithmetic number, because the mean of its divisors is an integer number (136818588).

Almost surely, 2^478865051 is an apocalyptic number.

478865051 is a deficient number, since it is larger than the sum of its proper divisors (68409301).

478865051 is an equidigital number, since it uses as much as digits as its factorization.

478865051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68409300.

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 478865051 is about 21882.9854224692. The cubic root of 478865051 is about 782.3559335601.

The spelling of 478865051 in words is "four hundred seventy-eight million, eight hundred sixty-five thousand, fifty-one".