72261475468 has 24 divisors (see below), whose sum is σ = 155640101792. Its totient is φ = 28586957184.

The previous prime is 72261475409. The next prime is 72261475477. The reversal of 72261475468 is 86457416227.

It is a super-3 number, since 3×72261475468³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 99259905 + ... + 99260632.

Almost surely, 2^72261475468 is an apocalyptic number.

It is an amenable number.

72261475468 is an abundant number, since it is smaller than the sum of its proper divisors (83378626324).

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

72261475468 is a wasteful number, since it uses less digits than its factorization.

72261475468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198520561 (or 198520559 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 52.

The spelling of 72261475468 in words is "seventy-two billion, two hundred sixty-one million, four hundred seventy-five thousand, four hundred sixty-eight".