511053635445 has 16 divisors (see below), whose sum is σ = 817919592000. Its totient is φ = 272484013824.

The previous prime is 511053635441. The next prime is 511053635471. The reversal of 511053635445 is 544536350115.

It is a happy number.

It is not a de Polignac number, because 511053635445 - 2² = 511053635441 is a prime.

It is a super-2 number, since 2×511053635445² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 511053635397 and 511053635406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511053635441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4816084 + ... + 4921053.

It is an arithmetic number, because the mean of its divisors is an integer number (51119974500).

Almost surely, 2^511053635445 is an apocalyptic number.

It is an amenable number.

511053635445 is a deficient number, since it is larger than the sum of its proper divisors (306865956555).

511053635445 is a wasteful number, since it uses less digits than its factorization.

511053635445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9740644.

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 511053635445 in words is "five hundred eleven billion, fifty-three million, six hundred thirty-five thousand, four hundred forty-five".