64757876081 has 8 divisors (see below), whose sum is σ = 64845287424. Its totient is φ = 64670518080.

The previous prime is 64757876047. The next prime is 64757876087. The reversal of 64757876081 is 18067875746.

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 64757876081 - 2¹⁸ = 64757613937 is a prime.

It is a super-2 number, since 2×64757876081² (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 64757876081.

It is not an unprimeable number, because it can be changed into a prime (64757876087) 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, 2804921 + ... + 2827913.

It is an arithmetic number, because the mean of its divisors is an integer number (8105660928).

Almost surely, 2^64757876081 is an apocalyptic number.

It is an amenable number.

64757876081 is a deficient number, since it is larger than the sum of its proper divisors (87411343).

64757876081 is a wasteful number, since it uses less digits than its factorization.

64757876081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26671.

The product of its (nonzero) digits is 15805440, while the sum is 59.

The spelling of 64757876081 in words is "sixty-four billion, seven hundred fifty-seven million, eight hundred seventy-six thousand, eighty-one".