64734547330437 has 4 divisors (see below), whose sum is σ = 86312729773920. Its totient is φ = 43156364886956.

The previous prime is 64734547330351. The next prime is 64734547330457. The reversal of 64734547330437 is 73403374543746.

64734547330437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64734547330437 - 2²⁸ = 64734278894981 is a prime.

It is a super-2 number, since 2×64734547330437² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64734547330457) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10789091221737 + ... + 10789091221742.

It is an arithmetic number, because the mean of its divisors is an integer number (21578182443480).

Almost surely, 2^{64734547330437} is an apocalyptic number.

It is an amenable number.

64734547330437 is a deficient number, since it is larger than the sum of its proper divisors (21578182443483).

64734547330437 is a wasteful number, since it uses less digits than its factorization.

64734547330437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21578182443482.

The product of its (nonzero) digits is 213373440, while the sum is 60.

The spelling of 64734547330437 in words is "sixty-four trillion, seven hundred thirty-four billion, five hundred forty-seven million, three hundred thirty thousand, four hundred thirty-seven".