64858047135809 has 8 divisors (see below), whose sum is σ = 64893816000000. Its totient is φ = 64822281599232.

The previous prime is 64858047135799. The next prime is 64858047135823. The reversal of 64858047135809 is 90853174085846.

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

It is a cyclic number.

It is not a de Polignac number, because 64858047135809 - 2⁴⁰ = 63758535508033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64858047135509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38677217 + ... + 40319265.

It is an arithmetic number, because the mean of its divisors is an integer number (8111727000000).

Almost surely, 2^{64858047135809} is an apocalyptic number.

It is an amenable number.

64858047135809 is a deficient number, since it is larger than the sum of its proper divisors (35768864191).

64858047135809 is a wasteful number, since it uses less digits than its factorization.

64858047135809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663807.

The product of its (nonzero) digits is 232243200, while the sum is 68.

The spelling of 64858047135809 in words is "sixty-four trillion, eight hundred fifty-eight billion, forty-seven million, one hundred thirty-five thousand, eight hundred nine".