64797279746 has 4 divisors (see below), whose sum is σ = 97195919622. Its totient is φ = 32398639872.

The previous prime is 64797279691. The next prime is 64797279791.

64797279746 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 58172133721 + 6625146025 = 241189^2 + 81395^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16199319935 + ... + 16199319938.

Almost surely, 2^64797279746 is an apocalyptic number.

64797279746 is a deficient number, since it is larger than the sum of its proper divisors (32398639876).

64797279746 is a wasteful number, since it uses less digits than its factorization.

64797279746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32398639875.

The product of its digits is 224042112, while the sum is 68.

The spelling of 64797279746 in words is "sixty-four billion, seven hundred ninety-seven million, two hundred seventy-nine thousand, seven hundred forty-six".