64051093643 has 4 divisors (see below), whose sum is σ = 65782204320. Its totient is φ = 62319982968.

The previous prime is 64051093637. The next prime is 64051093679. The reversal of 64051093643 is 34639015046.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 64051093643 - 2⁴ = 64051093627 is a prime.

It is a super-2 number, since 2×64051093643² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64051093643.

It is not an unprimeable number, because it can be changed into a prime (64051093633) 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 3 ways as a sum of consecutive naturals, for example, 865555283 + ... + 865555356.

It is an arithmetic number, because the mean of its divisors is an integer number (16445551080).

Almost surely, 2^64051093643 is an apocalyptic number.

64051093643 is a deficient number, since it is larger than the sum of its proper divisors (1731110677).

64051093643 is a wasteful number, since it uses less digits than its factorization.

64051093643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731110676.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 64051093643 in words is "sixty-four billion, fifty-one million, ninety-three thousand, six hundred forty-three".