21930319108434 has 32 divisors (see below), whose sum is σ = 48866010863616. Its totient is φ = 6504156536720.

The previous prime is 21930319108421. The next prime is 21930319108441. The reversal of 21930319108434 is 43480191303912.

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, 3534864582 + ... + 3534870785.

It is an arithmetic number, because the mean of its divisors is an integer number (1527062839488).

Almost surely, 2^{21930319108434} is an apocalyptic number.

21930319108434 is an abundant number, since it is smaller than the sum of its proper divisors (26935691755182).

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

21930319108434 is a wasteful number, since it uses less digits than its factorization.

21930319108434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7069735430.

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 21930319108434 in words is "twenty-one trillion, nine hundred thirty billion, three hundred nineteen million, one hundred eight thousand, four hundred thirty-four".