51454435212 has 36 divisors (see below), whose sum is σ = 130375834680. Its totient is φ = 17110539072.

The previous prime is 51454435183. The next prime is 51454435217. The reversal of 51454435212 is 21253445415.

51454435212 is a `hidden beast` number, since 5 + 1 + 4 + 5 + 4 + 435 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (51454435217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1690513 + ... + 1720680.

Almost surely, 2^51454435212 is an apocalyptic number.

It is an amenable number.

51454435212 is an abundant number, since it is smaller than the sum of its proper divisors (78921399468).

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

51454435212 is a wasteful number, since it uses less digits than its factorization.

51454435212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3411622 (or 3411617 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The spelling of 51454435212 in words is "fifty-one billion, four hundred fifty-four million, four hundred thirty-five thousand, two hundred twelve".