64951114947 has 8 divisors (see below), whose sum is σ = 87442278144. Its totient is φ = 42880347528.

The previous prime is 64951114909. The next prime is 64951114993. The reversal of 64951114947 is 74941115946.

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

It is not a de Polignac number, because 64951114947 - 2¹⁰ = 64951113923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64951114947.

It is not an unprimeable number, because it can be changed into a prime (64951114147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105098583 + ... + 105099200.

It is an arithmetic number, because the mean of its divisors is an integer number (10930284768).

Almost surely, 2^64951114947 is an apocalyptic number.

64951114947 is a deficient number, since it is larger than the sum of its proper divisors (22491163197).

64951114947 is a wasteful number, since it uses less digits than its factorization.

64951114947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210197889.

The product of its digits is 1088640, while the sum is 51.

Subtracting 64951114947 from its reverse (74941115946), we obtain a palindrome (9990000999).

The spelling of 64951114947 in words is "sixty-four billion, nine hundred fifty-one million, one hundred fourteen thousand, nine hundred forty-seven".