72644042007733 has 8 divisors (see below), whose sum is σ = 84382774791680. Its totient is φ = 61245562348080.

The previous prime is 72644042007703. The next prime is 72644042007737. The reversal of 72644042007733 is 33770024044627.

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 72644042007733 - 2¹³ = 72644041999541 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 (72644042007737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85063280613 + ... + 85063281466.

It is an arithmetic number, because the mean of its divisors is an integer number (10547846848960).

Almost surely, 2^{72644042007733} is an apocalyptic number.

It is an amenable number.

72644042007733 is a deficient number, since it is larger than the sum of its proper divisors (11738732783947).

72644042007733 is a wasteful number, since it uses less digits than its factorization.

72644042007733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170126562147.

The product of its (nonzero) digits is 4741632, while the sum is 49.

The spelling of 72644042007733 in words is "seventy-two trillion, six hundred forty-four billion, forty-two million, seven thousand, seven hundred thirty-three".