27945969825730 has 64 divisors (see below), whose sum is σ = 54984826632960. Its totient is φ = 10141984339200.

The previous prime is 27945969825721. The next prime is 27945969825733. The reversal of 27945969825730 is 3752896954972.

It is a super-2 number, since 2×27945969825730² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27945969825733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125709916 + ... + 125932024.

It is an arithmetic number, because the mean of its divisors is an integer number (859137916140).

Almost surely, 2^{27945969825730} is an apocalyptic number.

27945969825730 is a deficient number, since it is larger than the sum of its proper divisors (27038856807230).

27945969825730 is a wasteful number, since it uses less digits than its factorization.

27945969825730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224395.

The product of its (nonzero) digits is 2057529600, while the sum is 76.

The spelling of 27945969825730 in words is "twenty-seven trillion, nine hundred forty-five billion, nine hundred sixty-nine million, eight hundred twenty-five thousand, seven hundred thirty".