21465314403 has 8 divisors (see below), whose sum is σ = 30821989968. Its totient is φ = 13209424224.

The previous prime is 21465314393. The next prime is 21465314411. The reversal of 21465314403 is 30441356412.

It is a happy number.

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

It is not a de Polignac number, because 21465314403 - 2⁸ = 21465314147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21465314413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275196300 + ... + 275196377.

It is an arithmetic number, because the mean of its divisors is an integer number (3852748746).

Almost surely, 2^21465314403 is an apocalyptic number.

21465314403 is a deficient number, since it is larger than the sum of its proper divisors (9356675565).

21465314403 is a wasteful number, since it uses less digits than its factorization.

21465314403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550392693.

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 21465314403 in words is "twenty-one billion, four hundred sixty-five million, three hundred fourteen thousand, four hundred three".