73740336691 has 4 divisors (see below), whose sum is σ = 84274670512. Its totient is φ = 63206002872.

The previous prime is 73740336667. The next prime is 73740336713. The reversal of 73740336691 is 19663304737.

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 73740336691 - 2¹⁹ = 73739812403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73740336601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5267166900 + ... + 5267166913.

It is an arithmetic number, because the mean of its divisors is an integer number (21068667628).

Almost surely, 2^73740336691 is an apocalyptic number.

73740336691 is a deficient number, since it is larger than the sum of its proper divisors (10534333821).

73740336691 is a wasteful number, since it uses less digits than its factorization.

73740336691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10534333820.

The product of its (nonzero) digits is 1714608, while the sum is 49.

The spelling of 73740336691 in words is "seventy-three billion, seven hundred forty million, three hundred thirty-six thousand, six hundred ninety-one".