27708701812 has 48 divisors (see below), whose sum is σ = 56037961728. Its totient is φ = 11848094720.

The previous prime is 27708701803. The next prime is 27708701827. The reversal of 27708701812 is 21810780772.

It is a super-2 number, since 2×27708701812² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 1710093 + ... + 1726219.

It is an arithmetic number, because the mean of its divisors is an integer number (1167457536).

Almost surely, 2^27708701812 is an apocalyptic number.

27708701812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27708701812 is an abundant number, since it is smaller than the sum of its proper divisors (28329259916).

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

27708701812 is a wasteful number, since it uses less digits than its factorization.

27708701812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18456 (or 18454 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 43.

The spelling of 27708701812 in words is "twenty-seven billion, seven hundred eight million, seven hundred one thousand, eight hundred twelve".