72860456506 has 8 divisors (see below), whose sum is σ = 109292584500. Its totient is φ = 36429595008.

The previous prime is 72860456497. The next prime is 72860456509. The reversal of 72860456506 is 60565406827.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 68989750281 + 3870706225 = 262659^2 + 62215^2 .

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

It is a super-2 number, since 2×72860456506² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72860456506.

It is not an unprimeable number, because it can be changed into a prime (72860456509) 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 3 ways as a sum of consecutive naturals, for example, 156631 + ... + 412618.

Almost surely, 2^72860456506 is an apocalyptic number.

72860456506 is a deficient number, since it is larger than the sum of its proper divisors (36432127994).

72860456506 is a wasteful number, since it uses less digits than its factorization.

72860456506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633248.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 72860456506 in words is "seventy-two billion, eight hundred sixty million, four hundred fifty-six thousand, five hundred six".