64040948292571 has 8 divisors (see below), whose sum is σ = 66640955261760. Its totient is φ = 61491426895752.

The previous prime is 64040948292557. The next prime is 64040948292611. The reversal of 64040948292571 is 17529284904046.

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 64040948292571 - 2⁷ = 64040948292443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64040948292511) 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, 12621390505 + ... + 12621395578.

It is an arithmetic number, because the mean of its divisors is an integer number (8330119407720).

Almost surely, 2^{64040948292571} is an apocalyptic number.

64040948292571 is a deficient number, since it is larger than the sum of its proper divisors (2600006969189).

64040948292571 is a wasteful number, since it uses less digits than its factorization.

64040948292571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25242786185.

The product of its (nonzero) digits is 34836480, while the sum is 61.

The spelling of 64040948292571 in words is "sixty-four trillion, forty billion, nine hundred forty-eight million, two hundred ninety-two thousand, five hundred seventy-one".