481778864 has 40 divisors (see below), whose sum is σ = 1092825888. Its totient is φ = 201438720.

The previous prime is 481778863. The next prime is 481778867. The reversal of 481778864 is 468877184.

It is a super-2 number, since 2×481778864² = 464221747594260992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (481778863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47867 + ... + 57050.

Almost surely, 2^481778864 is an apocalyptic number.

It is an amenable number.

481778864 is an abundant number, since it is smaller than the sum of its proper divisors (611047024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

481778864 is a wasteful number, since it uses less digits than its factorization.

481778864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104973 (or 104967 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 53.

The square root of 481778864 is about 21949.4615879297. The cubic root of 481778864 is about 783.9395604525.

The spelling of 481778864 in words is "four hundred eighty-one million, seven hundred seventy-eight thousand, eight hundred sixty-four".