27145064830 has 32 divisors (see below), whose sum is σ = 54907481664. Its totient is φ = 9587018496.

The previous prime is 27145064777. The next prime is 27145064833. The reversal of 27145064830 is 3846054172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27145064833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4536319 + ... + 4542298.

It is an arithmetic number, because the mean of its divisors is an integer number (1715858802).

Almost surely, 2^27145064830 is an apocalyptic number.

27145064830 is an abundant number, since it is smaller than the sum of its proper divisors (27762416834).

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

27145064830 is a wasteful number, since it uses less digits than its factorization.

27145064830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9078660.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 27145064830 in words is "twenty-seven billion, one hundred forty-five million, sixty-four thousand, eight hundred thirty".