27929995885 has 16 divisors (see below), whose sum is σ = 37162300032. Its totient is φ = 19979726400.

The previous prime is 27929995883. The next prime is 27929995949. The reversal of 27929995885 is 58859992972.

It is not a de Polignac number, because 27929995885 - 2¹ = 27929995883 is a prime.

It is a super-2 number, since 2×27929995885² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27929995883) 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, 4159089 + ... + 4165798.

It is an arithmetic number, because the mean of its divisors is an integer number (2322643752).

Almost surely, 2^27929995885 is an apocalyptic number.

It is an amenable number.

27929995885 is a deficient number, since it is larger than the sum of its proper divisors (9232304147).

27929995885 is a wasteful number, since it uses less digits than its factorization.

27929995885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8324964.

The product of its digits is 293932800, while the sum is 73.

The spelling of 27929995885 in words is "twenty-seven billion, nine hundred twenty-nine million, nine hundred ninety-five thousand, eight hundred eighty-five".