72192801447 has 32 divisors (see below), whose sum is σ = 115233908160. Its totient is φ = 44405314560.

The previous prime is 72192801427. The next prime is 72192801469. The reversal of 72192801447 is 74410829127.

It is not a de Polignac number, because 72192801447 - 2¹⁶ = 72192735911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72192801427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 710923 + ... + 806099.

It is an arithmetic number, because the mean of its divisors is an integer number (3601059630).

Almost surely, 2^72192801447 is an apocalyptic number.

72192801447 is a deficient number, since it is larger than the sum of its proper divisors (43041106713).

72192801447 is a wasteful number, since it uses less digits than its factorization.

72192801447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97360 (or 97354 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 72192801447 in words is "seventy-two billion, one hundred ninety-two million, eight hundred one thousand, four hundred forty-seven".