72533478048 has 48 divisors (see below), whose sum is σ = 192285557856. Its totient is φ = 23938438400.

The previous prime is 72533478047. The next prime is 72533478067. The reversal of 72533478048 is 84087433527.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×72533478048² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72533478047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3730686 + ... + 3750077.

It is an arithmetic number, because the mean of its divisors is an integer number (4005949122).

Almost surely, 2^72533478048 is an apocalyptic number.

It is an amenable number.

72533478048 is an abundant number, since it is smaller than the sum of its proper divisors (119752079808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72533478048 is a wasteful number, since it uses less digits than its factorization.

72533478048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7480877 (or 7480869 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 51.

The spelling of 72533478048 in words is "seventy-two billion, five hundred thirty-three million, four hundred seventy-eight thousand, forty-eight".