21343802810974 has 16 divisors (see below), whose sum is σ = 36856451989728. Its totient is φ = 9080575126272.

The previous prime is 21343802810969. The next prime is 21343802810983. The reversal of 21343802810974 is 47901820834312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5564075979 + ... + 5564079814.

It is an arithmetic number, because the mean of its divisors is an integer number (2303528249358).

Almost surely, 2^{21343802810974} is an apocalyptic number.

21343802810974 is a deficient number, since it is larger than the sum of its proper divisors (15512649178754).

21343802810974 is a wasteful number, since it uses less digits than its factorization.

21343802810974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11128155939.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 21343802810974 in words is "twenty-one trillion, three hundred forty-three billion, eight hundred two million, eight hundred ten thousand, nine hundred seventy-four".