505678760705 has 16 divisors (see below), whose sum is σ = 627772965120. Its totient is φ = 390572210112.

The previous prime is 505678760659. The next prime is 505678760707. The reversal of 505678760705 is 507067876505.

It is a cyclic number.

It is not a de Polignac number, because 505678760705 - 2¹⁴ = 505678744321 is a prime.

It is a super-2 number, since 2×505678760705² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (505678760707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2945132 + ... + 3112098.

It is an arithmetic number, because the mean of its divisors is an integer number (39235810320).

Almost surely, 2^505678760705 is an apocalyptic number.

It is an amenable number.

505678760705 is a deficient number, since it is larger than the sum of its proper divisors (122094204415).

505678760705 is a wasteful number, since it uses less digits than its factorization.

505678760705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187888.

The product of its (nonzero) digits is 12348000, while the sum is 56.

The spelling of 505678760705 in words is "five hundred five billion, six hundred seventy-eight million, seven hundred sixty thousand, seven hundred five".