64326283861 has 16 divisors (see below), whose sum is σ = 74271043584. Its totient is φ = 54571295664.

The previous prime is 64326283859. The next prime is 64326283877. The reversal of 64326283861 is 16838262346.

It is a cyclic number.

It is not a de Polignac number, because 64326283861 - 2¹ = 64326283859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64326283841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787216 + ... + 865078.

It is an arithmetic number, because the mean of its divisors is an integer number (4641940224).

Almost surely, 2^64326283861 is an apocalyptic number.

It is an amenable number.

64326283861 is a deficient number, since it is larger than the sum of its proper divisors (9944759723).

64326283861 is a wasteful number, since it uses less digits than its factorization.

64326283861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79080.

The product of its digits is 1990656, while the sum is 49.

The spelling of 64326283861 in words is "sixty-four billion, three hundred twenty-six million, two hundred eighty-three thousand, eight hundred sixty-one".