64734547330445 has 16 divisors (see below), whose sum is σ = 78746718393840. Its totient is φ = 51077483864064.

The previous prime is 64734547330351. The next prime is 64734547330457. The reversal of 64734547330445 is 54403374543746.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 421894417156 + 64312652913289 = 649534^2 + 8019517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64734547330445 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24883637 + ... + 27361733.

It is an arithmetic number, because the mean of its divisors is an integer number (4921669899615).

Almost surely, 2^{64734547330445} is an apocalyptic number.

It is an amenable number.

64734547330445 is a deficient number, since it is larger than the sum of its proper divisors (14012171063395).

64734547330445 is a wasteful number, since it uses less digits than its factorization.

64734547330445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2549744.

The product of its (nonzero) digits is 203212800, while the sum is 59.

The spelling of 64734547330445 in words is "sixty-four trillion, seven hundred thirty-four billion, five hundred forty-seven million, three hundred thirty thousand, four hundred forty-five".