72245816689794 has 128 divisors (see below), whose sum is σ = 168266606238720. Its totient is φ = 20447763379200.

The previous prime is 72245816689741. The next prime is 72245816689799. The reversal of 72245816689794 is 49798661854227.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72245816689799) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 220544094 + ... + 220871430.

It is an arithmetic number, because the mean of its divisors is an integer number (1314582861240).

Almost surely, 2^{72245816689794} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72245816689794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84133303119360).

72245816689794 is an abundant number, since it is smaller than the sum of its proper divisors (96020789548926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72245816689794 is a wasteful number, since it uses less digits than its factorization.

72245816689794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329856.

The product of its digits is 2926264320, while the sum is 78.

The spelling of 72245816689794 in words is "seventy-two trillion, two hundred forty-five billion, eight hundred sixteen million, six hundred eighty-nine thousand, seven hundred ninety-four".