73947433889 has 8 divisors (see below), whose sum is σ = 84737928000. Its totient is φ = 63213583536.

The previous prime is 73947433843. The next prime is 73947433897. The reversal of 73947433889 is 98833474937.

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 73947433889 - 2¹⁶ = 73947368353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73947433589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14158139 + ... + 14163360.

It is an arithmetic number, because the mean of its divisors is an integer number (10592241000).

Almost surely, 2^73947433889 is an apocalyptic number.

It is an amenable number.

73947433889 is a deficient number, since it is larger than the sum of its proper divisors (10790494111).

73947433889 is a wasteful number, since it uses less digits than its factorization.

73947433889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28321879.

The product of its digits is 109734912, while the sum is 65.

The spelling of 73947433889 in words is "seventy-three billion, nine hundred forty-seven million, four hundred thirty-three thousand, eight hundred eighty-nine".