545405412540 has 96 divisors (see below), whose sum is σ = 1549954538496. Its totient is φ = 143282810880.

The previous prime is 545405412493. The next prime is 545405412547. The reversal of 545405412540 is 45214504545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545405412547) 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 31 ways as a sum of consecutive naturals, for example, 964105 + ... + 1421375.

It is an arithmetic number, because the mean of its divisors is an integer number (16145359776).

Almost surely, 2^545405412540 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 545405412540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (774977269248).

545405412540 is an abundant number, since it is smaller than the sum of its proper divisors (1004549125956).

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

545405412540 is a wasteful number, since it uses less digits than its factorization.

545405412540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457579 (or 457577 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 39.

The spelling of 545405412540 in words is "five hundred forty-five billion, four hundred five million, four hundred twelve thousand, five hundred forty".