72741692909 has 8 divisors (see below), whose sum is σ = 73963873152. Its totient is φ = 71520470640.

The previous prime is 72741692899. The next prime is 72741692981. The reversal of 72741692909 is 90929614727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72741692909 - 2⁴ = 72741692893 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72741697909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85529 + ... + 390894.

It is an arithmetic number, because the mean of its divisors is an integer number (9245484144).

Almost surely, 2^72741692909 is an apocalyptic number.

It is an amenable number.

72741692909 is a deficient number, since it is larger than the sum of its proper divisors (1222180243).

72741692909 is a wasteful number, since it uses less digits than its factorization.

72741692909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478987.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The spelling of 72741692909 in words is "seventy-two billion, seven hundred forty-one million, six hundred ninety-two thousand, nine hundred nine".