72475021333 has 32 divisors (see below), whose sum is σ = 94899047040. Its totient is φ = 54227957760.

The previous prime is 72475021331. The next prime is 72475021337. The reversal of 72475021333 is 33312057427.

It is not a de Polignac number, because 72475021333 - 2¹ = 72475021331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72475021292 and 72475021301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72475021331) 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 31 ways as a sum of consecutive naturals, for example, 738360 + ... + 830737.

It is an arithmetic number, because the mean of its divisors is an integer number (2965595220).

Almost surely, 2^72475021333 is an apocalyptic number.

It is an amenable number.

72475021333 is a deficient number, since it is larger than the sum of its proper divisors (22424025707).

72475021333 is a wasteful number, since it uses less digits than its factorization.

72475021333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569157.

The product of its (nonzero) digits is 105840, while the sum is 37.

It can be divided in two parts, 724 and 75021333, that added together give a palindrome (75022057).

The spelling of 72475021333 in words is "seventy-two billion, four hundred seventy-five million, twenty-one thousand, three hundred thirty-three".