72302421513 has 8 divisors (see below), whose sum is σ = 110175118528. Its totient is φ = 41315669424.

The previous prime is 72302421511. The next prime is 72302421517. The reversal of 72302421513 is 31512420327.

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

It is not a de Polignac number, because 72302421513 - 2¹ = 72302421511 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72302421511) 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 7 ways as a sum of consecutive naturals, for example, 1721486206 + ... + 1721486247.

It is an arithmetic number, because the mean of its divisors is an integer number (13771889816).

Almost surely, 2^72302421513 is an apocalyptic number.

It is an amenable number.

72302421513 is a deficient number, since it is larger than the sum of its proper divisors (37872697015).

72302421513 is a wasteful number, since it uses less digits than its factorization.

72302421513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442972463.

The product of its (nonzero) digits is 10080, while the sum is 30.

The spelling of 72302421513 in words is "seventy-two billion, three hundred two million, four hundred twenty-one thousand, five hundred thirteen".