64703423212 has 6 divisors (see below), whose sum is σ = 113230990628. Its totient is φ = 32351711604.

The previous prime is 64703423207. The next prime is 64703423219. The reversal of 64703423212 is 21232430746.

It is not an unprimeable number, because it can be changed into a prime (64703423219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8087927898 + ... + 8087927905.

Almost surely, 2^64703423212 is an apocalyptic number.

It is an amenable number.

64703423212 is a deficient number, since it is larger than the sum of its proper divisors (48527567416).

64703423212 is a wasteful number, since it uses less digits than its factorization.

64703423212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16175855807 (or 16175855805 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 34.

Adding to 64703423212 its reverse (21232430746), we get a palindrome (85935853958).

The spelling of 64703423212 in words is "sixty-four billion, seven hundred three million, four hundred twenty-three thousand, two hundred twelve".