545722028642 has 18 divisors (see below), whose sum is σ = 952242014763. Its totient is φ = 233877735252.

The previous prime is 545722028639. The next prime is 545722028689. The reversal of 545722028642 is 246820227545.

It can be written as a sum of positive squares in only one way, i.e., 272861014321 + 272861014321 = 522361^2 + 522361^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=522361.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7275743 + ... + 7350365.

Almost surely, 2^545722028642 is an apocalyptic number.

545722028642 is a deficient number, since it is larger than the sum of its proper divisors (406519986121).

545722028642 is an frugal number, since it uses more digits than its factorization.

545722028642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149262 (or 74632 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 47.

The spelling of 545722028642 in words is "five hundred forty-five billion, seven hundred twenty-two million, twenty-eight thousand, six hundred forty-two".