73270919812 has 24 divisors (see below), whose sum is σ = 128724311576. Its totient is φ = 36492622848.

The previous prime is 73270919807. The next prime is 73270919929. The reversal of 73270919812 is 21891907237.

It can be written as a sum of positive squares in 4 ways, for example, as 9216 + 73270910596 = 96^2 + 270686^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4993078 + ... + 5007730.

Almost surely, 2^73270919812 is an apocalyptic number.

It is an amenable number.

73270919812 is a deficient number, since it is larger than the sum of its proper divisors (55453391764).

73270919812 is a wasteful number, since it uses less digits than its factorization.

73270919812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19447 (or 19445 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 49.

The spelling of 73270919812 in words is "seventy-three billion, two hundred seventy million, nine hundred nineteen thousand, eight hundred twelve".