21860522934 has 16 divisors (see below), whose sum is σ = 43754009088. Its totient is φ = 7281347112.

The previous prime is 21860522909. The next prime is 21860522939. The reversal of 21860522934 is 43922506812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21860522939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1364842 + ... + 1380765.

It is an arithmetic number, because the mean of its divisors is an integer number (2734625568).

Almost surely, 2^21860522934 is an apocalyptic number.

21860522934 is an abundant number, since it is smaller than the sum of its proper divisors (21893486154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21860522934 is a wasteful number, since it uses less digits than its factorization.

21860522934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746939.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 21860522934 in words is "twenty-one billion, eight hundred sixty million, five hundred twenty-two thousand, nine hundred thirty-four".