73840111279 has 4 divisors (see below), whose sum is σ = 80552848680. Its totient is φ = 67127373880.

The previous prime is 73840111253. The next prime is 73840111327. The reversal of 73840111279 is 97211104837.

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

It is a cyclic number.

It is not a de Polignac number, because 73840111279 - 2¹³ = 73840103087 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 (73840111249) 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, 3356368684 + ... + 3356368705.

It is an arithmetic number, because the mean of its divisors is an integer number (20138212170).

Almost surely, 2^73840111279 is an apocalyptic number.

73840111279 is a deficient number, since it is larger than the sum of its proper divisors (6712737401).

73840111279 is a wasteful number, since it uses less digits than its factorization.

73840111279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6712737400.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 73840111279 in words is "seventy-three billion, eight hundred forty million, one hundred eleven thousand, two hundred seventy-nine".