72645074307499 has 8 divisors (see below), whose sum is σ = 78001670508768. Its totient is φ = 67408851054720.

The previous prime is 72645074307437. The next prime is 72645074307527. The reversal of 72645074307499 is 99470347054627.

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

It is a cyclic number.

It is not a de Polignac number, because 72645074307499 - 2¹⁷ = 72645074176427 is a prime.

It is a super-2 number, since 2×72645074307499² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72645074337499) 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, 30093235872 + ... + 30093238285.

It is an arithmetic number, because the mean of its divisors is an integer number (9750208813596).

Almost surely, 2^{72645074307499} is an apocalyptic number.

72645074307499 is a deficient number, since it is larger than the sum of its proper divisors (5356596201269).

72645074307499 is a wasteful number, since it uses less digits than its factorization.

72645074307499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60186474245.

The product of its (nonzero) digits is 320060160, while the sum is 67.

The spelling of 72645074307499 in words is "seventy-two trillion, six hundred forty-five billion, seventy-four million, three hundred seven thousand, four hundred ninety-nine".