42993073947 has 8 divisors (see below), whose sum is σ = 58657217344. Its totient is φ = 27995489928.

The previous prime is 42993073889. The next prime is 42993074039. The reversal of 42993073947 is 74937039924.

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

It is not a de Polignac number, because 42993073947 - 2⁸ = 42993073691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42993073247) 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 7 ways as a sum of consecutive naturals, for example, 166639693 + ... + 166639950.

It is an arithmetic number, because the mean of its divisors is an integer number (7332152168).

Almost surely, 2^42993073947 is an apocalyptic number.

42993073947 is a deficient number, since it is larger than the sum of its proper divisors (15664143397).

42993073947 is a wasteful number, since it uses less digits than its factorization.

42993073947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333279689.

The product of its (nonzero) digits is 10287648, while the sum is 57.

The spelling of 42993073947 in words is "forty-two billion, nine hundred ninety-three million, seventy-three thousand, nine hundred forty-seven".