511004443145 has 48 divisors (see below), whose sum is σ = 746418359808. Its totient is φ = 334454158080.

The previous prime is 511004443141. The next prime is 511004443217. The reversal of 511004443145 is 541344400115.

It is not a de Polignac number, because 511004443145 - 2² = 511004443141 is a prime.

It is a super-2 number, since 2×511004443145² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (511004443141) 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 47 ways as a sum of consecutive naturals, for example, 93602 + ... + 1015268.

It is an arithmetic number, because the mean of its divisors is an integer number (15550382496).

Almost surely, 2^511004443145 is an apocalyptic number.

It is an amenable number.

511004443145 is a deficient number, since it is larger than the sum of its proper divisors (235413916663).

511004443145 is a wasteful number, since it uses less digits than its factorization.

511004443145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921790 (or 921783 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 511004443145 in words is "five hundred eleven billion, four million, four hundred forty-three thousand, one hundred forty-five".