64471704525147 has 16 divisors (see below), whose sum is σ = 88735575498752. Its totient is φ = 41594495146560.

The previous prime is 64471704525113. The next prime is 64471704525167. The reversal of 64471704525147 is 74152540717446.

It is a de Polignac number, because none of the positive numbers 2^k-64471704525147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64471704525167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27670998 + ... + 29910324.

It is an arithmetic number, because the mean of its divisors is an integer number (5545973468672).

Almost surely, 2^{64471704525147} is an apocalyptic number.

64471704525147 is a deficient number, since it is larger than the sum of its proper divisors (24263870973605).

64471704525147 is a wasteful number, since it uses less digits than its factorization.

64471704525147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548938.

The product of its (nonzero) digits is 26342400, while the sum is 57.

The spelling of 64471704525147 in words is "sixty-four trillion, four hundred seventy-one billion, seven hundred four million, five hundred twenty-five thousand, one hundred forty-seven".