64225058981 has 8 divisors (see below), whose sum is σ = 64416898560. Its totient is φ = 64033276032.

The previous prime is 64225058971. The next prime is 64225059077. The reversal of 64225058981 is 18985052246.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64225058981 is a prime.

It is a super-2 number, since 2×64225058981² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64225058951) 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 7 ways as a sum of consecutive naturals, for example, 3628130 + ... + 3645788.

It is an arithmetic number, because the mean of its divisors is an integer number (8052112320).

Almost surely, 2^64225058981 is an apocalyptic number.

It is an amenable number.

64225058981 is a deficient number, since it is larger than the sum of its proper divisors (191839579).

64225058981 is a wasteful number, since it uses less digits than its factorization.

64225058981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28315.

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 64225058981 in words is "sixty-four billion, two hundred twenty-five million, fifty-eight thousand, nine hundred eighty-one".