27980067500571 has 16 divisors (see below), whose sum is σ = 41580286070400. Its totient is φ = 16632114427008.

The previous prime is 27980067500563. The next prime is 27980067500591. The reversal of 27980067500571 is 17500576008972.

It is a happy number.

It is not a de Polignac number, because 27980067500571 - 2³ = 27980067500563 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (27980067500521) 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, 14437598361 + ... + 14437600298.

It is an arithmetic number, because the mean of its divisors is an integer number (2598767879400).

Almost surely, 2^{27980067500571} is an apocalyptic number.

27980067500571 is a deficient number, since it is larger than the sum of its proper divisors (13600218569829).

27980067500571 is a wasteful number, since it uses less digits than its factorization.

27980067500571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28875198698.

The product of its (nonzero) digits is 7408800, while the sum is 57.

The spelling of 27980067500571 in words is "twenty-seven trillion, nine hundred eighty billion, sixty-seven million, five hundred thousand, five hundred seventy-one".