505212040612 has 24 divisors (see below), whose sum is σ = 917006522040. Its totient is φ = 243345369600.

The previous prime is 505212040517. The next prime is 505212040651. The reversal of 505212040612 is 216040212505.

It can be written as a sum of positive squares in 4 ways, for example, as 442948815936 + 62263224676 = 665544^2 + 249526^2 .

It is a super-2 number, since 2×505212040612² (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 (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16884037 + ... + 16913932.

It is an arithmetic number, because the mean of its divisors is an integer number (38208605085).

Almost surely, 2^505212040612 is an apocalyptic number.

It is an amenable number.

505212040612 is a deficient number, since it is larger than the sum of its proper divisors (411794481428).

505212040612 is a wasteful number, since it uses less digits than its factorization.

505212040612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33798111 (or 33798109 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 505212040612 in words is "five hundred five billion, two hundred twelve million, forty thousand, six hundred twelve".