64705882949 has 4 divisors (see below), whose sum is σ = 65671642464. Its totient is φ = 63740123436.

The previous prime is 64705882921. The next prime is 64705882961. The reversal of 64705882949 is 94928850746.

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 not a de Polignac number, because 64705882949 - 2⁸ = 64705882693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64705882891 and 64705882900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64705882909) 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 3 ways as a sum of consecutive naturals, for example, 482879657 + ... + 482879790.

It is an arithmetic number, because the mean of its divisors is an integer number (16417910616).

Almost surely, 2^64705882949 is an apocalyptic number.

It is an amenable number.

64705882949 is a deficient number, since it is larger than the sum of its proper divisors (965759515).

64705882949 is an equidigital number, since it uses as much as digits as its factorization.

64705882949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965759514.

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 64705882949 in words is "sixty-four billion, seven hundred five million, eight hundred eighty-two thousand, nine hundred forty-nine".