505671885376 has 56 divisors (see below), whose sum is σ = 1147832421120. Its totient is φ = 216519831552.

The previous prime is 505671885343. The next prime is 505671885413. The reversal of 505671885376 is 673588176505.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×505671885376² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17521 + ... + 1005808.

It is an arithmetic number, because the mean of its divisors is an integer number (20497007520).

Almost surely, 2^505671885376 is an apocalyptic number.

505671885376 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

505671885376 is an abundant number, since it is smaller than the sum of its proper divisors (642160535744).

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

505671885376 is a wasteful number, since it uses less digits than its factorization.

505671885376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024451 (or 1024441 counting only the distinct ones).

The product of its (nonzero) digits is 42336000, while the sum is 61.

The spelling of 505671885376 in words is "five hundred five billion, six hundred seventy-one million, eight hundred eighty-five thousand, three hundred seventy-six".