64475149063247 has 8 divisors (see below), whose sum is σ = 69437395180944. Its totient is φ = 59513277126528.

The previous prime is 64475149063243. The next prime is 64475149063319. The reversal of 64475149063247 is 74236094157446.

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

It is a cyclic number.

It is not a de Polignac number, because 64475149063247 - 2² = 64475149063243 is a prime.

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 64475149063247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64475149063243) 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, 93187313 + ... + 93876650.

It is an arithmetic number, because the mean of its divisors is an integer number (8679674397618).

Almost surely, 2^{64475149063247} is an apocalyptic number.

64475149063247 is a deficient number, since it is larger than the sum of its proper divisors (4962246117697).

64475149063247 is a wasteful number, since it uses less digits than its factorization.

64475149063247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187090489.

The product of its (nonzero) digits is 121927680, while the sum is 62.

The spelling of 64475149063247 in words is "sixty-four trillion, four hundred seventy-five billion, one hundred forty-nine million, sixty-three thousand, two hundred forty-seven".