64315973426 has 8 divisors (see below), whose sum is σ = 96583219824. Its totient is φ = 32121566820.

The previous prime is 64315973417. The next prime is 64315973429. The reversal of 64315973426 is 62437951346.

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

It is not an unprimeable number, because it can be changed into a prime (64315973429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18207740 + ... + 18211271.

It is an arithmetic number, because the mean of its divisors is an integer number (12072902478).

Almost surely, 2^64315973426 is an apocalyptic number.

64315973426 is a deficient number, since it is larger than the sum of its proper divisors (32267246398).

64315973426 is a wasteful number, since it uses less digits than its factorization.

64315973426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36419896.

The product of its digits is 3265920, while the sum is 50.

The spelling of 64315973426 in words is "sixty-four billion, three hundred fifteen million, nine hundred seventy-three thousand, four hundred twenty-six".