511213234546 has 48 divisors (see below), whose sum is σ = 960494824800. Its totient is φ = 202708641408.

The previous prime is 511213234541. The next prime is 511213234549. The reversal of 511213234546 is 645432312115.

It is a super-2 number, since 2×511213234546² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511213234541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2502136 + ... + 2698723.

It is an arithmetic number, because the mean of its divisors is an integer number (20010308850).

Almost surely, 2^511213234546 is an apocalyptic number.

511213234546 is a deficient number, since it is larger than the sum of its proper divisors (449281590254).

511213234546 is a wasteful number, since it uses less digits than its factorization.

511213234546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5200951 (or 5200944 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The spelling of 511213234546 in words is "five hundred eleven billion, two hundred thirteen million, two hundred thirty-four thousand, five hundred forty-six".