481778061 has 16 divisors (see below), whose sum is σ = 655761600. Its totient is φ = 314536320.

The previous prime is 481778053. The next prime is 481778069. The reversal of 481778061 is 160877184.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (481778053) and next prime (481778069).

It is not a de Polignac number, because 481778061 - 2³ = 481778053 is a prime.

It is a super-2 number, since 2×481778061² = 464220200121839442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481778069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36990 + ... + 48288.

It is an arithmetic number, because the mean of its divisors is an integer number (40985100).

Almost surely, 2^481778061 is an apocalyptic number.

It is an amenable number.

481778061 is a deficient number, since it is larger than the sum of its proper divisors (173983539).

481778061 is a wasteful number, since it uses less digits than its factorization.

481778061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11596.

The product of its (nonzero) digits is 75264, while the sum is 42.

The square root of 481778061 is about 21949.4432959016. The cubic root of 481778061 is about 783.9391249112.

The spelling of 481778061 in words is "four hundred eighty-one million, seven hundred seventy-eight thousand, sixty-one".