511366432452 has 12 divisors (see below), whose sum is σ = 1193188342416. Its totient is φ = 170455477480.

The previous prime is 511366432441. The next prime is 511366432469. The reversal of 511366432452 is 254234663115.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×511366432452² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 21306934674 + ... + 21306934697.

It is an arithmetic number, because the mean of its divisors is an integer number (99432361868).

Almost surely, 2^511366432452 is an apocalyptic number.

It is an amenable number.

511366432452 is an abundant number, since it is smaller than the sum of its proper divisors (681821909964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511366432452 is a wasteful number, since it uses less digits than its factorization.

511366432452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42613869378 (or 42613869376 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

The spelling of 511366432452 in words is "five hundred eleven billion, three hundred sixty-six million, four hundred thirty-two thousand, four hundred fifty-two".