72484822157 has 12 divisors (see below), whose sum is σ = 79685191740. Its totient is φ = 65885540160.

The previous prime is 72484822147. The next prime is 72484822171. The reversal of 72484822157 is 75122848427.

It can be written as a sum of positive squares in 2 ways, for example, as 40725661636 + 31759160521 = 201806^2 + 178211^2 .

It is not a de Polignac number, because 72484822157 - 2⁶ = 72484822093 is a prime.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72484822147) 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 11 ways as a sum of consecutive naturals, for example, 851003 + ... + 932295.

It is an arithmetic number, because the mean of its divisors is an integer number (6640432645).

Almost surely, 2^72484822157 is an apocalyptic number.

It is an amenable number.

72484822157 is a deficient number, since it is larger than the sum of its proper divisors (7200369583).

72484822157 is a wasteful number, since it uses less digits than its factorization.

72484822157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88684 (or 88673 counting only the distinct ones).

The product of its digits is 2007040, while the sum is 50.

The spelling of 72484822157 in words is "seventy-two billion, four hundred eighty-four million, eight hundred twenty-two thousand, one hundred fifty-seven".