64942893519337 has 4 divisors (see below), whose sum is σ = 64948981736016. Its totient is φ = 64936805302660.

The previous prime is 64942893519319. The next prime is 64942893519349. The reversal of 64942893519337 is 73391539824946.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64942893519337 is a prime.

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 64942893519337.

It is not an unprimeable number, because it can be changed into a prime (64942893519037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3044092339 + ... + 3044113672.

It is an arithmetic number, because the mean of its divisors is an integer number (16237245434004).

Almost surely, 2^{64942893519337} is an apocalyptic number.

It is an amenable number.

64942893519337 is a deficient number, since it is larger than the sum of its proper divisors (6088216679).

64942893519337 is a wasteful number, since it uses less digits than its factorization.

64942893519337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6088216678.

The product of its digits is 1058158080, while the sum is 73.

The spelling of 64942893519337 in words is "sixty-four trillion, nine hundred forty-two billion, eight hundred ninety-three million, five hundred nineteen thousand, three hundred thirty-seven".