64364871421 has 8 divisors (see below), whose sum is σ = 64723548384. Its totient is φ = 64007190480.

The previous prime is 64364871401. The next prime is 64364871437. The reversal of 64364871421 is 12417846346.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64364871421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64364871401) 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, 119215 + ... + 378076.

It is an arithmetic number, because the mean of its divisors is an integer number (8090443548).

Almost surely, 2^64364871421 is an apocalyptic number.

It is an amenable number.

64364871421 is a deficient number, since it is larger than the sum of its proper divisors (358676963).

64364871421 is a wasteful number, since it uses less digits than its factorization.

64364871421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498011.

The product of its digits is 774144, while the sum is 46.

The spelling of 64364871421 in words is "sixty-four billion, three hundred sixty-four million, eight hundred seventy-one thousand, four hundred twenty-one".