27909767712 has 48 divisors (see below), whose sum is σ = 73271882880. Its totient is φ = 9302145792.

The previous prime is 27909767693. The next prime is 27909767713. The reversal of 27909767712 is 21776790972.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (27909767713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1348998 + ... + 1369530.

It is an arithmetic number, because the mean of its divisors is an integer number (1526497560).

Almost surely, 2^27909767712 is an apocalyptic number.

It is an amenable number.

27909767712 is an abundant number, since it is smaller than the sum of its proper divisors (45362115168).

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

27909767712 is a wasteful number, since it uses less digits than its factorization.

27909767712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34705 (or 34697 counting only the distinct ones).

The product of its (nonzero) digits is 4667544, while the sum is 57.

The spelling of 27909767712 in words is "twenty-seven billion, nine hundred nine million, seven hundred sixty-seven thousand, seven hundred twelve".