511212346004 has 12 divisors (see below), whose sum is σ = 918800568084. Its totient is φ = 248697897984.

The previous prime is 511212346003. The next prime is 511212346061. The reversal of 511212346004 is 400643212115.

It can be written as a sum of positive squares in 2 ways, for example, as 195671753104 + 315540592900 = 442348^2 + 561730^2 .

It is a super-2 number, since 2×511212346004² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511212346003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1727068589 + ... + 1727068884.

It is an arithmetic number, because the mean of its divisors is an integer number (76566714007).

Almost surely, 2^511212346004 is an apocalyptic number.

It is an amenable number.

511212346004 is a deficient number, since it is larger than the sum of its proper divisors (407588222080).

511212346004 is a wasteful number, since it uses less digits than its factorization.

511212346004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3454137514 (or 3454137512 counting only the distinct ones).

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

Adding to 511212346004 its reverse (400643212115), we get a palindrome (911855558119).

The spelling of 511212346004 in words is "five hundred eleven billion, two hundred twelve million, three hundred forty-six thousand, four".