21488014148 has 6 divisors (see below), whose sum is σ = 37604024766. Its totient is φ = 10744007072.

The previous prime is 21488014103. The next prime is 21488014169. The reversal of 21488014148 is 84141088412.

It can be written as a sum of positive squares in only one way, i.e., 12527877184 + 8960136964 = 111928^2 + 94658^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2686001765 + ... + 2686001772.

It is an arithmetic number, because the mean of its divisors is an integer number (6267337461).

Almost surely, 2^21488014148 is an apocalyptic number.

It is an amenable number.

21488014148 is a deficient number, since it is larger than the sum of its proper divisors (16116010618).

21488014148 is a wasteful number, since it uses less digits than its factorization.

21488014148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5372003541 (or 5372003539 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 41.

The spelling of 21488014148 in words is "twenty-one billion, four hundred eighty-eight million, fourteen thousand, one hundred forty-eight".