64081770051 has 8 divisors (see below), whose sum is σ = 92014849360. Its totient is φ = 39434935392.

The previous prime is 64081770019. The next prime is 64081770073. The reversal of 64081770051 is 15007718046.

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

It is not a de Polignac number, because 64081770051 - 2⁵ = 64081770019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1643122309 = 64081770051 / (6 + 4 + 0 + 8 + 1 + 7 + 7 + 0 + 0 + 5 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64081769991 and 64081770009.

It is not an unprimeable number, because it can be changed into a prime (64081770751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821561116 + ... + 821561193.

It is an arithmetic number, because the mean of its divisors is an integer number (11501856170).

Almost surely, 2^64081770051 is an apocalyptic number.

64081770051 is a deficient number, since it is larger than the sum of its proper divisors (27933079309).

64081770051 is a wasteful number, since it uses less digits than its factorization.

64081770051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643122325.

The product of its (nonzero) digits is 47040, while the sum is 39.

The spelling of 64081770051 in words is "sixty-four billion, eighty-one million, seven hundred seventy thousand, fifty-one".