73021428842 has 8 divisors (see below), whose sum is σ = 109572258432. Its totient is φ = 36497342700.

The previous prime is 73021428841. The next prime is 73021428863. The reversal of 73021428842 is 24882412037.

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

It is a self number, because there is not a number n which added to its sum of digits gives 73021428842.

It is not an unprimeable number, because it can be changed into a prime (73021428841) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 6679034 + ... + 6689957.

It is an arithmetic number, because the mean of its divisors is an integer number (13696532304).

Almost surely, 2^73021428842 is an apocalyptic number.

73021428842 is a deficient number, since it is larger than the sum of its proper divisors (36550829590).

73021428842 is a wasteful number, since it uses less digits than its factorization.

73021428842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13371724.

The product of its (nonzero) digits is 172032, while the sum is 41.

The spelling of 73021428842 in words is "seventy-three billion, twenty-one million, four hundred twenty-eight thousand, eight hundred forty-two".