72401626545321 has 8 divisors (see below), whose sum is σ = 96535544410720. Its totient is φ = 48267729855072.

The previous prime is 72401626545253. The next prime is 72401626545343. The reversal of 72401626545321 is 12354562610427.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72401626545321 - 2¹³ = 72401626537129 is a prime.

It is a super-3 number, since 3×72401626545321³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72401626543321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6331125 + ... + 13597293.

It is an arithmetic number, because the mean of its divisors is an integer number (12066943051340).

Almost surely, 2^{72401626545321} is an apocalyptic number.

It is an amenable number.

72401626545321 is a deficient number, since it is larger than the sum of its proper divisors (24133917865399).

72401626545321 is a wasteful number, since it uses less digits than its factorization.

72401626545321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10587575.

The product of its (nonzero) digits is 2419200, while the sum is 48.

The spelling of 72401626545321 in words is "seventy-two trillion, four hundred one billion, six hundred twenty-six million, five hundred forty-five thousand, three hundred twenty-one".