481990779 has 6 divisors (see below), whose sum is σ = 696208916. Its totient is φ = 321327180.

The previous prime is 481990777. The next prime is 481990811. The reversal of 481990779 is 977099184.

481990779 is a `hidden beast` number, since 481 + 9 + 90 + 7 + 79 = 666.

It is not a de Polignac number, because 481990779 - 2¹ = 481990777 is a prime.

It is a super-2 number, since 2×481990779² = 464630222082053682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (481990777) 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 5 ways as a sum of consecutive naturals, for example, 26777257 + ... + 26777274.

Almost surely, 2^481990779 is an apocalyptic number.

481990779 is a deficient number, since it is larger than the sum of its proper divisors (214218137).

481990779 is a wasteful number, since it uses less digits than its factorization.

481990779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53554537 (or 53554534 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The square root of 481990779 is about 21954.2883965753. The cubic root of 481990779 is about 784.0544846861.

The spelling of 481990779 in words is "four hundred eighty-one million, nine hundred ninety thousand, seven hundred seventy-nine".