64006421854 has 8 divisors (see below), whose sum is σ = 96017367600. Its totient is φ = 32000632656.

The previous prime is 64006421839. The next prime is 64006421867. The reversal of 64006421854 is 45812460046.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1257954 + ... + 1307845.

It is an arithmetic number, because the mean of its divisors is an integer number (12002170950).

Almost surely, 2^64006421854 is an apocalyptic number.

64006421854 is a deficient number, since it is larger than the sum of its proper divisors (32010945746).

64006421854 is a wasteful number, since it uses less digits than its factorization.

64006421854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578274.

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 64006421854 in words is "sixty-four billion, six million, four hundred twenty-one thousand, eight hundred fifty-four".