73902806623 has 4 divisors (see below), whose sum is σ = 78250030560. Its totient is φ = 69555582688.

The previous prime is 73902806617. The next prime is 73902806723. The reversal of 73902806623 is 32660820937.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32660820937 = 17 ⋅1921224761.

It is not a de Polignac number, because 73902806623 - 2⁵ = 73902806591 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 (73902806323) 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, 2173611943 + ... + 2173611976.

It is an arithmetic number, because the mean of its divisors is an integer number (19562507640).

Almost surely, 2^73902806623 is an apocalyptic number.

73902806623 is a deficient number, since it is larger than the sum of its proper divisors (4347223937).

73902806623 is a wasteful number, since it uses less digits than its factorization.

73902806623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4347223936.

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 73902806623 in words is "seventy-three billion, nine hundred two million, eight hundred six thousand, six hundred twenty-three".