505212120634 has 8 divisors (see below), whose sum is σ = 816111887220. Its totient is φ = 233174824896.

The previous prime is 505212120599. The next prime is 505212120659. The reversal of 505212120634 is 436021212505.

It can be written as a sum of positive squares in 2 ways, for example, as 430329440025 + 74882680609 = 655995^2 + 273647^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×505212120634³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 505212120596 and 505212120605.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9715617679 + ... + 9715617730.

Almost surely, 2^505212120634 is an apocalyptic number.

505212120634 is a deficient number, since it is larger than the sum of its proper divisors (310899766586).

505212120634 is a wasteful number, since it uses less digits than its factorization.

505212120634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19431235424.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 505212120634 in words is "five hundred five billion, two hundred twelve million, one hundred twenty thousand, six hundred thirty-four".