21374403403522 has 64 divisors (see below), whose sum is σ = 36626800734720. Its totient is φ = 9267588734976.

The previous prime is 21374403403519. The next prime is 21374403403537. The reversal of 21374403403522 is 22530430447312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 544870473 + ... + 544909699.

It is an arithmetic number, because the mean of its divisors is an integer number (572293761480).

Almost surely, 2^{21374403403522} is an apocalyptic number.

21374403403522 is a deficient number, since it is larger than the sum of its proper divisors (15252397331198).

21374403403522 is a wasteful number, since it uses less digits than its factorization.

21374403403522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41515.

The product of its (nonzero) digits is 483840, while the sum is 40.

The spelling of 21374403403522 in words is "twenty-one trillion, three hundred seventy-four billion, four hundred three million, four hundred three thousand, five hundred twenty-two".