481978719 has 24 divisors (see below), whose sum is σ = 734073600. Its totient is φ = 303892560.

The previous prime is 481978709. The next prime is 481978769. The reversal of 481978719 is 917879184.

481978719 is a `hidden beast` number, since 481 + 97 + 8 + 71 + 9 = 666.

It is not a de Polignac number, because 481978719 - 2⁷ = 481978591 is a prime.

It is a super-2 number, since 2×481978719² = 464606971137761922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481978709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116122 + ... + 120200.

It is an arithmetic number, because the mean of its divisors is an integer number (30586400).

Almost surely, 2^481978719 is an apocalyptic number.

481978719 is a deficient number, since it is larger than the sum of its proper divisors (252094881).

481978719 is a wasteful number, since it uses less digits than its factorization.

481978719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4795 (or 4792 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 54.

The square root of 481978719 is about 21954.0137332562. The cubic root of 481978719 is about 784.0479452969.

It can be divided in two parts, 4819 and 78719, that added together give a palindrome (83538).

The spelling of 481978719 in words is "four hundred eighty-one million, nine hundred seventy-eight thousand, seven hundred nineteen".