545678231432 has 16 divisors (see below), whose sum is σ = 1083331783260.
Its totient is φ = 256789755904.
The previous prime is 545678231429. The next prime is 545678231453. The reversal of 545678231432 is 234132876545.
It can be written as a sum of positive squares in 2 ways, for example, as 540627855076 + 5050376356 = 735274^2 + 71066^2
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2006169833 + ... + 2006170104.
Almost surely, 2545678231432 is an apocalyptic number.
It is an amenable number.
545678231432 is a deficient number, since it is larger than the sum of its proper divisors (537653551828).
545678231432 is a wasteful number, since it uses less digits than its factorization.
545678231432 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4012339960 (or 4012339956 counting only the distinct ones).
The product of its digits is 4838400, while the sum is 50.
The spelling of 545678231432 in words is "five hundred forty-five billion, six hundred seventy-eight million, two hundred thirty-one thousand, four hundred thirty-two".