73067189897 has 4 divisors (see below), whose sum is σ = 78687742980. Its totient is φ = 67446636816.

The previous prime is 73067189893. The next prime is 73067189911. The reversal of 73067189897 is 79898176037.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39567575056 + 33499614841 = 198916^2 + 183029^2 .

It is not a de Polignac number, because 73067189897 - 2² = 73067189893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73067189893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2810276522 + ... + 2810276547.

It is an arithmetic number, because the mean of its divisors is an integer number (19671935745).

Almost surely, 2^73067189897 is an apocalyptic number.

It is an amenable number.

73067189897 is a deficient number, since it is larger than the sum of its proper divisors (5620553083).

73067189897 is a wasteful number, since it uses less digits than its factorization.

73067189897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5620553082.

The product of its (nonzero) digits is 32006016, while the sum is 65.

The spelling of 73067189897 in words is "seventy-three billion, sixty-seven million, one hundred eighty-nine thousand, eight hundred ninety-seven".