21437442747602 has 64 divisors (see below), whose sum is σ = 37012947770880. Its totient is φ = 9122002444800.

The previous prime is 21437442747599. The next prime is 21437442747613. The reversal of 21437442747602 is 20674724473412.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1452492299 + ... + 1452507057.

It is an arithmetic number, because the mean of its divisors is an integer number (578327308920).

Almost surely, 2^{21437442747602} is an apocalyptic number.

21437442747602 is a deficient number, since it is larger than the sum of its proper divisors (15575505023278).

21437442747602 is a wasteful number, since it uses less digits than its factorization.

21437442747602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16347.

The product of its (nonzero) digits is 12644352, while the sum is 53.

The spelling of 21437442747602 in words is "twenty-one trillion, four hundred thirty-seven billion, four hundred forty-two million, seven hundred forty-seven thousand, six hundred two".