64243364026 has 8 divisors (see below), whose sum is σ = 96368064084. Its totient is φ = 32120676000.

The previous prime is 64243363973. The next prime is 64243364051. The reversal of 64243364026 is 62046334246.

It can be written as a sum of positive squares in 2 ways, for example, as 63698188225 + 545175801 = 252385^2 + 23349^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 64243364026.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420475 + ... + 552526.

Almost surely, 2^64243364026 is an apocalyptic number.

64243364026 is a deficient number, since it is larger than the sum of its proper divisors (32124700058).

64243364026 is a wasteful number, since it uses less digits than its factorization.

64243364026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006016.

The product of its (nonzero) digits is 497664, while the sum is 40.

The spelling of 64243364026 in words is "sixty-four billion, two hundred forty-three million, three hundred sixty-four thousand, twenty-six".