511212340090 has 16 divisors (see below), whose sum is σ = 920575326600. Its totient is φ = 204397577280.

The previous prime is 511212340073. The next prime is 511212340097. The reversal of 511212340090 is 90043212115.

It can be written as a sum of positive squares in 4 ways, for example, as 342436802761 + 168775537329 = 585181^2 + 410823^2 .

It is a super-2 number, since 2×511212340090² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511212340097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10895265 + ... + 10942084.

Almost surely, 2^511212340090 is an apocalyptic number.

511212340090 is a deficient number, since it is larger than the sum of its proper divisors (409362986510).

511212340090 is a wasteful number, since it uses less digits than its factorization.

511212340090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21839697.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 511212340090 in words is "five hundred eleven billion, two hundred twelve million, three hundred forty thousand, ninety".