511422022340 has 24 divisors (see below), whose sum is σ = 1103012903832. Its totient is φ = 199039921920.

The previous prime is 511422022333. The next prime is 511422022343. The reversal of 511422022340 is 43220224115.

It can be written as a sum of positive squares in 4 ways, for example, as 227765653504 + 283656368836 = 477248^2 + 532594^2 .

It is not an unprimeable number, because it can be changed into a prime (511422022343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345554681 + ... + 345556160.

It is an arithmetic number, because the mean of its divisors is an integer number (45958870993).

Almost surely, 2^511422022340 is an apocalyptic number.

It is an amenable number.

511422022340 is an abundant number, since it is smaller than the sum of its proper divisors (591590881492).

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

511422022340 is a wasteful number, since it uses less digits than its factorization.

511422022340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691110887 (or 691110885 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 511422022340 its reverse (43220224115), we get a palindrome (554642246455).

The spelling of 511422022340 in words is "five hundred eleven billion, four hundred twenty-two million, twenty-two thousand, three hundred forty".