20839862548 has 12 divisors (see below), whose sum is σ = 36660701952. Its totient is φ = 10365376280.

The previous prime is 20839862513. The next prime is 20839862567. The reversal of 20839862548 is 84526893802.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13637890 + ... + 13639417.

It is an arithmetic number, because the mean of its divisors is an integer number (3055058496).

Almost surely, 2^20839862548 is an apocalyptic number.

It is an amenable number.

20839862548 is a deficient number, since it is larger than the sum of its proper divisors (15820839404).

20839862548 is a wasteful number, since it uses less digits than its factorization.

20839862548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27277502 (or 27277500 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 55.

The spelling of 20839862548 in words is "twenty billion, eight hundred thirty-nine million, eight hundred sixty-two thousand, five hundred forty-eight".