21354544607602 has 8 divisors (see below), whose sum is σ = 32054076691200. Its totient is φ = 10669852377204.

The previous prime is 21354544607597. The next prime is 21354544607603. The reversal of 21354544607602 is 20670644545312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21354544607603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3709959702 + ... + 3709965457.

It is an arithmetic number, because the mean of its divisors is an integer number (4006759586400).

Almost surely, 2^{21354544607602} is an apocalyptic number.

21354544607602 is a deficient number, since it is larger than the sum of its proper divisors (10699532083598).

21354544607602 is a wasteful number, since it uses less digits than its factorization.

21354544607602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7419926600.

The product of its (nonzero) digits is 4838400, while the sum is 49.

The spelling of 21354544607602 in words is "twenty-one trillion, three hundred fifty-four billion, five hundred forty-four million, six hundred seven thousand, six hundred two".