6465362421 has 8 divisors (see below), whose sum is σ = 9851980864. Its totient is φ = 3694492800.

The previous prime is 6465362417. The next prime is 6465362443. The reversal of 6465362421 is 1242635646.

6465362421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6465362421 - 2² = 6465362417 is a prime.

It is a super-3 number, since 3×6465362421³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6465362421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6465362411) 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, 153937180 + ... + 153937221.

It is an arithmetic number, because the mean of its divisors is an integer number (1231497608).

Almost surely, 2^6465362421 is an apocalyptic number.

It is an amenable number.

6465362421 is a deficient number, since it is larger than the sum of its proper divisors (3386618443).

6465362421 is a wasteful number, since it uses less digits than its factorization.

6465362421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307874411.

The product of its digits is 207360, while the sum is 39.

The square root of 6465362421 is about 80407.4773948294. The cubic root of 6465362421 is about 1862.9346686710.

The spelling of 6465362421 in words is "six billion, four hundred sixty-five million, three hundred sixty-two thousand, four hundred twenty-one".