21882546049 has 24 divisors (see below), whose sum is σ = 27539421120. Its totient is φ = 17020156608.

The previous prime is 21882546029. The next prime is 21882546067. The reversal of 21882546049 is 94064528812.

It is not a de Polignac number, because 21882546049 - 2³¹ = 19735062401 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21882545993 and 21882546011.

It is not an unprimeable number, because it can be changed into a prime (21882546029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86962 + ... + 226555.

It is an arithmetic number, because the mean of its divisors is an integer number (1147475880).

Almost surely, 2^21882546049 is an apocalyptic number.

It is an amenable number.

21882546049 is a deficient number, since it is larger than the sum of its proper divisors (5656875071).

21882546049 is a wasteful number, since it uses less digits than its factorization.

21882546049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313609 (or 313596 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 21882546049 in words is "twenty-one billion, eight hundred eighty-two million, five hundred forty-six thousand, forty-nine".