72548345103 has 16 divisors (see below), whose sum is σ = 104178170880. Its totient is φ = 44642483424.

The previous prime is 72548345099. The next prime is 72548345137. The reversal of 72548345103 is 30154384527.

It is a Cunningham number, because it is equal to 269348²-1.

It is not a de Polignac number, because 72548345103 - 2² = 72548345099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72548345143) 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 15 ways as a sum of consecutive naturals, for example, 763150 + ... + 852932.

It is an arithmetic number, because the mean of its divisors is an integer number (6511135680).

Almost surely, 2^72548345103 is an apocalyptic number.

72548345103 is a deficient number, since it is larger than the sum of its proper divisors (31629825777).

72548345103 is a wasteful number, since it uses less digits than its factorization.

72548345103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110518.

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 72548345103 in words is "seventy-two billion, five hundred forty-eight million, three hundred forty-five thousand, one hundred three".