545679636 has 12 divisors (see below), whose sum is σ = 1273252512. Its totient is φ = 181893208.

The previous prime is 545679593. The next prime is 545679637. The reversal of 545679636 is 636976545.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545679637) 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, 22736640 + ... + 22736663.

It is an arithmetic number, because the mean of its divisors is an integer number (106104376).

Almost surely, 2^545679636 is an apocalyptic number.

It is an amenable number.

545679636 is an abundant number, since it is smaller than the sum of its proper divisors (727572876).

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

545679636 is a wasteful number, since it uses less digits than its factorization.

545679636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45473310 (or 45473308 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 51.

The square root of 545679636 is about 23359.7867284785. The cubic root of 545679636 is about 817.1703158642.

The spelling of 545679636 in words is "five hundred forty-five million, six hundred seventy-nine thousand, six hundred thirty-six".