27747520612 has 48 divisors (see below), whose sum is σ = 56175904512. Its totient is φ = 11746483200.

The previous prime is 27747520583. The next prime is 27747520621. The reversal of 27747520612 is 21602574772.

It is a super-2 number, since 2×27747520612² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1144488 + ... + 1168480.

It is an arithmetic number, because the mean of its divisors is an integer number (1170331344).

Almost surely, 2^27747520612 is an apocalyptic number.

It is an amenable number.

27747520612 is an abundant number, since it is smaller than the sum of its proper divisors (28428383900).

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

27747520612 is a wasteful number, since it uses less digits than its factorization.

27747520612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24508 (or 24506 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 43.

The spelling of 27747520612 in words is "twenty-seven billion, seven hundred forty-seven million, five hundred twenty thousand, six hundred twelve".