64892647795213 has 16 divisors (see below), whose sum is σ = 78924163912704. Its totient is φ = 52084633386240.

The previous prime is 64892647795207. The next prime is 64892647795237. The reversal of 64892647795213 is 31259774629846.

It is not a de Polignac number, because 64892647795213 - 2¹³ = 64892647787021 is a prime.

It is a super-2 number, since 2×64892647795213² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64892647796213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1384028253 + ... + 1384075138.

It is an arithmetic number, because the mean of its divisors is an integer number (4932760244544).

Almost surely, 2^{64892647795213} is an apocalyptic number.

It is an amenable number.

64892647795213 is a deficient number, since it is larger than the sum of its proper divisors (14031516117491).

64892647795213 is a wasteful number, since it uses less digits than its factorization.

64892647795213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768103612.

The product of its digits is 1097349120, while the sum is 73.

The spelling of 64892647795213 in words is "sixty-four trillion, eight hundred ninety-two billion, six hundred forty-seven million, seven hundred ninety-five thousand, two hundred thirteen".