511122228081738 has 32 divisors (see below), whose sum is σ = 1258147022971776. Its totient is φ = 134801466746688.

The previous prime is 511122228081713. The next prime is 511122228081769. The reversal of 511122228081738 is 837180822221115.

It is a super-2 number, since 2×511122228081738² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468060647881 + ... + 468060648972.

It is an arithmetic number, because the mean of its divisors is an integer number (39317094467868).

Almost surely, 2^{511122228081738} is an apocalyptic number.

511122228081738 is an abundant number, since it is smaller than the sum of its proper divisors (747024794890038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511122228081738 is a wasteful number, since it uses less digits than its factorization.

511122228081738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936121296878.

The product of its (nonzero) digits is 860160, while the sum is 51.

The spelling of 511122228081738 in words is "five hundred eleven trillion, one hundred twenty-two billion, two hundred twenty-eight million, eighty-one thousand, seven hundred thirty-eight".