72605147788 has 24 divisors (see below), whose sum is σ = 133377253632. Its totient is φ = 34516264464.

The previous prime is 72605147761. The next prime is 72605147789. The reversal of 72605147788 is 88774150627.

It is not an unprimeable number, because it can be changed into a prime (72605147789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2347470 + ... + 2378197.

It is an arithmetic number, because the mean of its divisors is an integer number (5557385568).

Almost surely, 2^72605147788 is an apocalyptic number.

It is an amenable number.

72605147788 is a deficient number, since it is larger than the sum of its proper divisors (60772105844).

72605147788 is a wasteful number, since it uses less digits than its factorization.

72605147788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4725861 (or 4725859 counting only the distinct ones).

The product of its (nonzero) digits is 5268480, while the sum is 55.

The spelling of 72605147788 in words is "seventy-two billion, six hundred five million, one hundred forty-seven thousand, seven hundred eighty-eight".