64249961193241 has 8 divisors (see below), whose sum is σ = 64660814238920. Its totient is φ = 63839128624128.

The previous prime is 64249961193217. The next prime is 64249961193311. The reversal of 64249961193241 is 14239116994246.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7826728021641 + 56423233171600 = 2797629^2 + 7511540^2 .

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-64249961193241 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 64249961193241.

It is not an unprimeable number, because it can be changed into a prime (64249961190241) 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, 1201255 + ... + 11399251.

It is an arithmetic number, because the mean of its divisors is an integer number (8082601779865).

Almost surely, 2^{64249961193241} is an apocalyptic number.

It is an amenable number.

64249961193241 is a deficient number, since it is larger than the sum of its proper divisors (410853045679).

64249961193241 is a wasteful number, since it uses less digits than its factorization.

64249961193241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10238283.

The product of its digits is 20155392, while the sum is 61.

The spelling of 64249961193241 in words is "sixty-four trillion, two hundred forty-nine billion, nine hundred sixty-one million, one hundred ninety-three thousand, two hundred forty-one".