511043511942 has 96 divisors (see below), whose sum is σ = 1145034491328. Its totient is φ = 164638476288.

The previous prime is 511043511919. The next prime is 511043511971. The reversal of 511043511942 is 249115340115.

511043511942 is a `hidden beast` number, since 5 + 1 + 10 + 43 + 511 + 94 + 2 = 666.

It is a super-2 number, since 2×511043511942² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 511043511897 and 511043511906.

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, 61768318 + ... + 61776590.

It is an arithmetic number, because the mean of its divisors is an integer number (11927442618).

Almost surely, 2^511043511942 is an apocalyptic number.

511043511942 is an abundant number, since it is smaller than the sum of its proper divisors (633990979386).

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

511043511942 is a wasteful number, since it uses less digits than its factorization.

511043511942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9294 (or 9291 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 511043511942 in words is "five hundred eleven billion, forty-three million, five hundred eleven thousand, nine hundred forty-two".