54343209312 has 576 divisors, whose sum is σ = 194596577280. Its totient is φ = 14689382400.

The previous prime is 54343209299. The next prime is 54343209317. The reversal of 54343209312 is 21390234345.

54343209312 is a `hidden beast` number, since 5 + 434 + 3 + 209 + 3 + 12 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54343209317) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 61683112 + ... + 61683992.

It is an arithmetic number, because the mean of its divisors is an integer number (337841280).

Almost surely, 2^54343209312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54343209312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97298288640).

54343209312 is an abundant number, since it is smaller than the sum of its proper divisors (140253367968).

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

54343209312 is a wasteful number, since it uses less digits than its factorization.

54343209312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992 (or 971 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 54343209312 in words is "fifty-four billion, three hundred forty-three million, two hundred nine thousand, three hundred twelve".