64187842416667 has 8 divisors (see below), whose sum is σ = 65121690693632. Its totient is φ = 63260688393000.

The previous prime is 64187842416653. The next prime is 64187842416679. The reversal of 64187842416667 is 76661424878146.

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-64187842416667 is a prime.

It is a super-2 number, since 2×64187842416667² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64187842416596 and 64187842416605.

It is not an unprimeable number, because it can be changed into a prime (64187542416667) 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, 1673544009 + ... + 1673582362.

It is an arithmetic number, because the mean of its divisors is an integer number (8140211336704).

Almost surely, 2^{64187842416667} is an apocalyptic number.

64187842416667 is a deficient number, since it is larger than the sum of its proper divisors (933848276965).

64187842416667 is a wasteful number, since it uses less digits than its factorization.

64187842416667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3347126649.

The product of its digits is 520224768, while the sum is 70.

The spelling of 64187842416667 in words is "sixty-four trillion, one hundred eighty-seven billion, eight hundred forty-two million, four hundred sixteen thousand, six hundred sixty-seven".