72449720333739 has 24 divisors (see below), whose sum is σ = 119989113404160. Its totient is φ = 41264987280048.

The previous prime is 72449720333737. The next prime is 72449720333747. The reversal of 72449720333739 is 93733302794427.

72449720333739 is a `hidden beast` number, since 7 + 2 + 4 + 4 + 97 + 203 + 337 + 3 + 9 = 666.

It is not a de Polignac number, because 72449720333739 - 2¹ = 72449720333737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (72449720333737) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1872937599 + ... + 1872976280.

It is an arithmetic number, because the mean of its divisors is an integer number (4999546391840).

Almost surely, 2^{72449720333739} is an apocalyptic number.

72449720333739 is a deficient number, since it is larger than the sum of its proper divisors (47539393070421).

72449720333739 is a wasteful number, since it uses less digits than its factorization.

72449720333739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3745914199 (or 3745914196 counting only the distinct ones).

The product of its (nonzero) digits is 144027072, while the sum is 63.

The spelling of 72449720333739 in words is "seventy-two trillion, four hundred forty-nine billion, seven hundred twenty million, three hundred thirty-three thousand, seven hundred thirty-nine".