72625551488 has 96 divisors (see below), whose sum is σ = 178206134940. Its totient is φ = 29294297088.

The previous prime is 72625551487. The next prime is 72625551497. The reversal of 72625551488 is 88415552627.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 69953902144 + 2671649344 = 264488^2 + 51688^2 .

It is a super-2 number, since 2×72625551488² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72625551487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233945 + ... + 447192.

Almost surely, 2^72625551488 is an apocalyptic number.

It is an amenable number.

72625551488 is an abundant number, since it is smaller than the sum of its proper divisors (105580583452).

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

72625551488 is a wasteful number, since it uses less digits than its factorization.

72625551488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681182 (or 681163 counting only the distinct ones).

The product of its digits is 5376000, while the sum is 53.

The spelling of 72625551488 in words is "seventy-two billion, six hundred twenty-five million, five hundred fifty-one thousand, four hundred eighty-eight".