21902100388414 has 16 divisors (see below), whose sum is σ = 34773326012880. Its totient is φ = 10317360458880.

The previous prime is 21902100388411. The next prime is 21902100388423. The reversal of 21902100388414 is 41488300120912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21902100388411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1592178379 + ... + 1592192134.

It is an arithmetic number, because the mean of its divisors is an integer number (2173332875805).

Almost surely, 2^{21902100388414} is an apocalyptic number.

21902100388414 is a deficient number, since it is larger than the sum of its proper divisors (12871225624466).

21902100388414 is a wasteful number, since it uses less digits than its factorization.

21902100388414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184370715.

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 21902100388414 in words is "twenty-one trillion, nine hundred two billion, one hundred million, three hundred eighty-eight thousand, four hundred fourteen".