21082604248 has 64 divisors (see below), whose sum is σ = 41617152000. Its totient is φ = 9999897600.

The previous prime is 21082604239. The next prime is 21082604299. The reversal of 21082604248 is 84240628012.

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, 3148488 + ... + 3155176.

It is an arithmetic number, because the mean of its divisors is an integer number (650268000).

Almost surely, 2^21082604248 is an apocalyptic number.

It is an amenable number.

21082604248 is a deficient number, since it is larger than the sum of its proper divisors (20534547752).

21082604248 is a wasteful number, since it uses less digits than its factorization.

21082604248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6976 (or 6972 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 37.

The spelling of 21082604248 in words is "twenty-one billion, eighty-two million, six hundred four thousand, two hundred forty-eight".