72431309283 has 16 divisors (see below), whose sum is σ = 97614763680. Its totient is φ = 47770384896.

The previous prime is 72431309263. The next prime is 72431309297. The reversal of 72431309283 is 38290313427.

It is not a de Polignac number, because 72431309283 - 2¹⁰ = 72431308259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72431309213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227910 + ... + 443627.

It is an arithmetic number, because the mean of its divisors is an integer number (6100922730).

Almost surely, 2^72431309283 is an apocalyptic number.

72431309283 is a deficient number, since it is larger than the sum of its proper divisors (25183454397).

72431309283 is a wasteful number, since it uses less digits than its factorization.

72431309283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671926.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 72431309283 in words is "seventy-two billion, four hundred thirty-one million, three hundred nine thousand, two hundred eighty-three".