64022457187 has 16 divisors (see below), whose sum is σ = 70142496480. Its totient is φ = 58073928192.

The previous prime is 64022457101. The next prime is 64022457199. The reversal of 64022457187 is 78175422046.

It is a cyclic number.

It is not a de Polignac number, because 64022457187 - 2¹⁹ = 64021932899 is a prime.

It is a super-2 number, since 2×64022457187² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64022457287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2207593 + ... + 2236405.

It is an arithmetic number, because the mean of its divisors is an integer number (4383906030).

Almost surely, 2^64022457187 is an apocalyptic number.

64022457187 is a deficient number, since it is larger than the sum of its proper divisors (6120039293).

64022457187 is a wasteful number, since it uses less digits than its factorization.

64022457187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31782.

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 64022457187 in words is "sixty-four billion, twenty-two million, four hundred fifty-seven thousand, one hundred eighty-seven".