511042305445 has 48 divisors (see below), whose sum is σ = 755521078320. Its totient is φ = 329734938624.

The previous prime is 511042305409. The next prime is 511042305457. The reversal of 511042305445 is 544503240115.

It can be written as a sum of positive squares in 8 ways, for example, as 2624820289 + 508417485156 = 51233^2 + 713034^2 .

It is not a de Polignac number, because 511042305445 - 2²³ = 511033916837 is a prime.

It is a super-2 number, since 2×511042305445² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 511042305445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20350137 + ... + 20375233.

It is an arithmetic number, because the mean of its divisors is an integer number (15740022465).

Almost surely, 2^511042305445 is an apocalyptic number.

It is an amenable number.

511042305445 is a deficient number, since it is larger than the sum of its proper divisors (244478772875).

511042305445 is a wasteful number, since it uses less digits than its factorization.

511042305445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30022 (or 30015 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 511042305445 in words is "five hundred eleven billion, forty-two million, three hundred five thousand, four hundred forty-five".