73087217952851 has 4 divisors (see below), whose sum is σ = 76933913634600. Its totient is φ = 69240522271104.

The previous prime is 73087217952839. The next prime is 73087217952869. The reversal of 73087217952851 is 15825971278037.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73087217952851 - 2²² = 73087213758547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73087217951851) 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, 1923347840846 + ... + 1923347840883.

It is an arithmetic number, because the mean of its divisors is an integer number (19233478408650).

Almost surely, 2^{73087217952851} is an apocalyptic number.

73087217952851 is a deficient number, since it is larger than the sum of its proper divisors (3846695681749).

73087217952851 is a wasteful number, since it uses less digits than its factorization.

73087217952851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3846695681748.

The product of its (nonzero) digits is 59270400, while the sum is 65.

The spelling of 73087217952851 in words is "seventy-three trillion, eighty-seven billion, two hundred seventeen million, nine hundred fifty-two thousand, eight hundred fifty-one".