73908342847 has 4 divisors (see below), whose sum is σ = 73943322880. Its totient is φ = 73873362816.

The previous prime is 73908342791. The next prime is 73908342889. The reversal of 73908342847 is 74824380937.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74824380937 = 709 ⋅105535093.

It is a cyclic number.

It is not a de Polignac number, because 73908342847 - 2²³ = 73899954239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73908342647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17486847 + ... + 17491072.

It is an arithmetic number, because the mean of its divisors is an integer number (18485830720).

Almost surely, 2^73908342847 is an apocalyptic number.

73908342847 is a deficient number, since it is larger than the sum of its proper divisors (34980033).

73908342847 is a wasteful number, since it uses less digits than its factorization.

73908342847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34980032.

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 73908342847 in words is "seventy-three billion, nine hundred eight million, three hundred forty-two thousand, eight hundred forty-seven".