21134061524 has 24 divisors (see below), whose sum is σ = 37990622208. Its totient is φ = 10279694880.

The previous prime is 21134061517. The next prime is 21134061541. The reversal of 21134061524 is 42516043112.

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 7 ways as a sum of consecutive naturals, for example, 1513157 + ... + 1527059.

It is an arithmetic number, because the mean of its divisors is an integer number (1582942592).

Almost surely, 2^21134061524 is an apocalyptic number.

It is an amenable number.

21134061524 is a deficient number, since it is larger than the sum of its proper divisors (16856560684).

21134061524 is a wasteful number, since it uses less digits than its factorization.

21134061524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24215 (or 24213 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 21134061524 in words is "twenty-one billion, one hundred thirty-four million, sixty-one thousand, five hundred twenty-four".