64623104303406 has 64 divisors (see below), whose sum is σ = 146157295034880. Its totient is φ = 18868666642560.

The previous prime is 64623104303389. The next prime is 64623104303479. The reversal of 64623104303406 is 60430340132646.

It is a happy number.

64623104303406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64623104303406² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33732541 + ... + 35596776.

It is an arithmetic number, because the mean of its divisors is an integer number (2283707734920).

Almost surely, 2^{64623104303406} is an apocalyptic number.

64623104303406 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

64623104303406 is an abundant number, since it is smaller than the sum of its proper divisors (81534190731474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64623104303406 is a wasteful number, since it uses less digits than its factorization.

64623104303406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69329849.

The product of its (nonzero) digits is 746496, while the sum is 42.

The spelling of 64623104303406 in words is "sixty-four trillion, six hundred twenty-three billion, one hundred four million, three hundred three thousand, four hundred six".