505419469440 has 64 divisors (see below), whose sum is σ = 1611024564960. Its totient is φ = 134778524672.

The previous prime is 505419469439. The next prime is 505419469543. The reversal of 505419469440 is 44964914505.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×505419469440² (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, 131617734 + ... + 131621573.

Almost surely, 2^505419469440 is an apocalyptic number.

It is an amenable number.

505419469440 is an abundant number, since it is smaller than the sum of its proper divisors (1105605095520).

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

505419469440 is a wasteful number, since it uses less digits than its factorization.

505419469440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263239329 (or 263239317 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 505419469440 in words is "five hundred five billion, four hundred nineteen million, four hundred sixty-nine thousand, four hundred forty".