73420757285 has 8 divisors (see below), whose sum is σ = 89598212640. Its totient is φ = 57741069904.

The previous prime is 73420757243. The next prime is 73420757287. The reversal of 73420757285 is 58275702437.

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

It is a cyclic number.

It is not a de Polignac number, because 73420757285 - 2¹⁶ = 73420691749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73420757287) 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, 124441667 + ... + 124442256.

It is an arithmetic number, because the mean of its divisors is an integer number (11199776580).

Almost surely, 2^73420757285 is an apocalyptic number.

It is an amenable number.

73420757285 is a deficient number, since it is larger than the sum of its proper divisors (16177455355).

73420757285 is a wasteful number, since it uses less digits than its factorization.

73420757285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248883987.

The product of its (nonzero) digits is 3292800, while the sum is 50.

The spelling of 73420757285 in words is "seventy-three billion, four hundred twenty million, seven hundred fifty-seven thousand, two hundred eighty-five".