73864338331 has 4 divisors (see below), whose sum is σ = 84416386672. Its totient is φ = 63312289992.

The previous prime is 73864338299. The next prime is 73864338371. The reversal of 73864338331 is 13383346837.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13383346837 = 7 ⋅1911906691.

It is not a de Polignac number, because 73864338331 - 2⁵ = 73864338299 is a prime.

It is a super-2 number, since 2×73864338331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73864338371) 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, 5276024160 + ... + 5276024173.

It is an arithmetic number, because the mean of its divisors is an integer number (21104096668).

Almost surely, 2^73864338331 is an apocalyptic number.

73864338331 is a deficient number, since it is larger than the sum of its proper divisors (10552048341).

73864338331 is a wasteful number, since it uses less digits than its factorization.

73864338331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10552048340.

The product of its digits is 2612736, while the sum is 49.

The spelling of 73864338331 in words is "seventy-three billion, eight hundred sixty-four million, three hundred thirty-eight thousand, three hundred thirty-one".