72501902403 has 16 divisors (see below), whose sum is σ = 113173702656. Its totient is φ = 40419178560.

The previous prime is 72501902383. The next prime is 72501902437. The reversal of 72501902403 is 30420910527.

It is not a de Polignac number, because 72501902403 - 2⁹ = 72501901891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72501902453) 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 15 ways as a sum of consecutive naturals, for example, 42102451 + ... + 42104172.

It is an arithmetic number, because the mean of its divisors is an integer number (7073356416).

Almost surely, 2^72501902403 is an apocalyptic number.

72501902403 is a deficient number, since it is larger than the sum of its proper divisors (40671800253).

72501902403 is a wasteful number, since it uses less digits than its factorization.

72501902403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84206674.

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 72501902403 in words is "seventy-two billion, five hundred one million, nine hundred two thousand, four hundred three".