27750643054750 has 128 divisors (see below), whose sum is σ = 65373150256128. Its totient is φ = 8568713520000.

The previous prime is 27750643054711. The next prime is 27750643054769. The reversal of 27750643054750 is 5745034605772.

It is a super-2 number, since 2×27750643054750² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a junction number, because it is equal to n+sod(n) for n = 27750643054691 and 27750643054700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4676661 + ... + 8796160.

It is an arithmetic number, because the mean of its divisors is an integer number (510727736376).

Almost surely, 2^{27750643054750} is an apocalyptic number.

27750643054750 is an abundant number, since it is smaller than the sum of its proper divisors (37622507201378).

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

27750643054750 is a wasteful number, since it uses less digits than its factorization.

27750643054750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13472963 (or 13472953 counting only the distinct ones).

The product of its (nonzero) digits is 24696000, while the sum is 55.

The spelling of 27750643054750 in words is "twenty-seven trillion, seven hundred fifty billion, six hundred forty-three million, fifty-four thousand, seven hundred fifty".