505393770019 has 4 divisors (see below), whose sum is σ = 505396354960. Its totient is φ = 505391185080.

The previous prime is 505393769963. The next prime is 505393770041. The reversal of 505393770019 is 910077393505.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 505393770019 - 2¹³ = 505393761827 is a prime.

It is a super-2 number, since 2×505393770019² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505393770059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 972852 + ... + 1399009.

It is an arithmetic number, because the mean of its divisors is an integer number (126349088740).

Almost surely, 2^505393770019 is an apocalyptic number.

505393770019 is a deficient number, since it is larger than the sum of its proper divisors (2584941).

505393770019 is a wasteful number, since it uses less digits than its factorization.

505393770019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2584940.

The product of its (nonzero) digits is 893025, while the sum is 49.

The spelling of 505393770019 in words is "five hundred five billion, three hundred ninety-three million, seven hundred seventy thousand, nineteen".