64106257073 has 8 divisors (see below), whose sum is σ = 64376056800. Its totient is φ = 63836615680.

The previous prime is 64106257009. The next prime is 64106257097. The reversal of 64106257073 is 37075260146.

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 64106257073 - 2⁶ = 64106257009 is a prime.

It is a super-2 number, since 2×64106257073² (a number of 22 digits) contains 22 as substring.

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 64106257073.

It is not an unprimeable number, because it can be changed into a prime (64106257003) 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, 810038 + ... + 885648.

It is an arithmetic number, because the mean of its divisors is an integer number (8047007100).

Almost surely, 2^64106257073 is an apocalyptic number.

It is an amenable number.

64106257073 is a deficient number, since it is larger than the sum of its proper divisors (269799727).

64106257073 is a wasteful number, since it uses less digits than its factorization.

64106257073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79167.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 64106257073 in words is "sixty-four billion, one hundred six million, two hundred fifty-seven thousand, seventy-three".