511020640226 has 16 divisors (see below), whose sum is σ = 777353226048. Its totient is φ = 251903139600.

The previous prime is 511020640219. The next prime is 511020640243. The reversal of 511020640226 is 622046020115.

It is a super-2 number, since 2×511020640226² (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, 7646516 + ... + 7713056.

It is an arithmetic number, because the mean of its divisors is an integer number (48584576628).

Almost surely, 2^511020640226 is an apocalyptic number.

511020640226 is a deficient number, since it is larger than the sum of its proper divisors (266332585822).

511020640226 is a wasteful number, since it uses less digits than its factorization.

511020640226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120697.

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 511020640226 in words is "five hundred eleven billion, twenty million, six hundred forty thousand, two hundred twenty-six".