511406511122 has 8 divisors (see below), whose sum is σ = 826118210316. Its totient is φ = 236033774352.

The previous prime is 511406511113. The next prime is 511406511127. The reversal of 511406511122 is 221115604115.

It can be written as a sum of positive squares in 2 ways, for example, as 407323491961 + 104083019161 = 638219^2 + 322619^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (511406511127) 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, 9834740573 + ... + 9834740624.

Almost surely, 2^511406511122 is an apocalyptic number.

511406511122 is a deficient number, since it is larger than the sum of its proper divisors (314711699194).

511406511122 is a wasteful number, since it uses less digits than its factorization.

511406511122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19669481212.

The product of its (nonzero) digits is 2400, while the sum is 29.

The spelling of 511406511122 in words is "five hundred eleven billion, four hundred six million, five hundred eleven thousand, one hundred twenty-two".