27721070048 has 24 divisors (see below), whose sum is σ = 62372408112. Its totient is φ = 11880458496.

The previous prime is 27721070029. The next prime is 27721070087. The reversal of 27721070048 is 84007012772.

It is a happy number.

It is a super-2 number, since 2×27721070048² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27721069993 and 27721070020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61877165 + ... + 61877612.

It is an arithmetic number, because the mean of its divisors is an integer number (2598850338).

Almost surely, 2^27721070048 is an apocalyptic number.

27721070048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27721070048 is an abundant number, since it is smaller than the sum of its proper divisors (34651338064).

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

27721070048 is a wasteful number, since it uses less digits than its factorization.

27721070048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123754794 (or 123754786 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 38.

The spelling of 27721070048 in words is "twenty-seven billion, seven hundred twenty-one million, seventy thousand, forty-eight".