64192043938 has 8 divisors (see below), whose sum is σ = 105041526480. Its totient is φ = 29178201780.

The previous prime is 64192043917. The next prime is 64192043957. The reversal of 64192043938 is 83934029146.

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

It is a junction number, because it is equal to n+sod(n) for n = 64192043891 and 64192043900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458910068 + ... + 1458910111.

It is an arithmetic number, because the mean of its divisors is an integer number (13130190810).

Almost surely, 2^64192043938 is an apocalyptic number.

64192043938 is a deficient number, since it is larger than the sum of its proper divisors (40849482542).

64192043938 is a wasteful number, since it uses less digits than its factorization.

64192043938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917820192.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The spelling of 64192043938 in words is "sixty-four billion, one hundred ninety-two million, forty-three thousand, nine hundred thirty-eight".