64648953453189 has 8 divisors (see below), whose sum is σ = 98512690976320. Its totient is φ = 36942259116096.

The previous prime is 64648953453179. The next prime is 64648953453223. The reversal of 64648953453189 is 98135435984646.

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

It is a de Polignac number, because none of the positive numbers 2^k-64648953453189 is a prime.

It is a super-2 number, since 2×64648953453189² (a number of 28 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 64648953453189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64648953453169) 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, 1539260796484 + ... + 1539260796525.

It is an arithmetic number, because the mean of its divisors is an integer number (12314086372040).

Almost surely, 2^{64648953453189} is an apocalyptic number.

It is an amenable number.

64648953453189 is a deficient number, since it is larger than the sum of its proper divisors (33863737523131).

64648953453189 is a wasteful number, since it uses less digits than its factorization.

64648953453189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078521593019.

The product of its digits is 2687385600, while the sum is 75.

The spelling of 64648953453189 in words is "sixty-four trillion, six hundred forty-eight billion, nine hundred fifty-three million, four hundred fifty-three thousand, one hundred eighty-nine".