64243346926 has 8 divisors (see below), whose sum is σ = 105125476824. Its totient is φ = 29201521320.

The previous prime is 64243346897. The next prime is 64243346929. The reversal of 64243346926 is 62964334246.

It is a happy number.

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 64243346926.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64243346929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1460076045 + ... + 1460076088.

It is an arithmetic number, because the mean of its divisors is an integer number (13140684603).

Almost surely, 2^64243346926 is an apocalyptic number.

64243346926 is a deficient number, since it is larger than the sum of its proper divisors (40882129898).

64243346926 is a wasteful number, since it uses less digits than its factorization.

64243346926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920152146.

The product of its digits is 4478976, while the sum is 49.

The spelling of 64243346926 in words is "sixty-four billion, two hundred forty-three million, three hundred forty-six thousand, nine hundred twenty-six".