21443514535102 has 16 divisors (see below), whose sum is σ = 35089669938672. Its totient is φ = 9746973584320.

The previous prime is 21443514535081. The next prime is 21443514535103. The reversal of 21443514535102 is 20153541534412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21443514535103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1083613 + ... + 6637864.

It is an arithmetic number, because the mean of its divisors is an integer number (2193104371167).

Almost surely, 2^{21443514535102} is an apocalyptic number.

21443514535102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21443514535102 is a deficient number, since it is larger than the sum of its proper divisors (13646155403570).

21443514535102 is a wasteful number, since it uses less digits than its factorization.

21443514535102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7847723.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 21443514535102 in words is "twenty-one trillion, four hundred forty-three billion, five hundred fourteen million, five hundred thirty-five thousand, one hundred two".