545442131633 has 4 divisors (see below), whose sum is σ = 623362436160. Its totient is φ = 467521827108.

The previous prime is 545442131627. The next prime is 545442131651. The reversal of 545442131633 is 336131244545.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 545442131633 - 2³⁶ = 476722654897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (545442131033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38960152253 + ... + 38960152266.

It is an arithmetic number, because the mean of its divisors is an integer number (155840609040).

Almost surely, 2^545442131633 is an apocalyptic number.

It is an amenable number.

545442131633 is a deficient number, since it is larger than the sum of its proper divisors (77920304527).

545442131633 is an equidigital number, since it uses as much as digits as its factorization.

545442131633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77920304526.

The product of its digits is 518400, while the sum is 41.

The spelling of 545442131633 in words is "five hundred forty-five billion, four hundred forty-two million, one hundred thirty-one thousand, six hundred thirty-three".