72019494412 has 6 divisors (see below), whose sum is σ = 126034115228. Its totient is φ = 36009747204.

The previous prime is 72019494397. The next prime is 72019494413. The reversal of 72019494412 is 21449491027.

It is not an unprimeable number, because it can be changed into a prime (72019494413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9002436798 + ... + 9002436805.

Almost surely, 2^72019494412 is an apocalyptic number.

It is an amenable number.

72019494412 is a deficient number, since it is larger than the sum of its proper divisors (54014620816).

72019494412 is a wasteful number, since it uses less digits than its factorization.

72019494412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18004873607 (or 18004873605 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 72019494412 in words is "seventy-two billion, nineteen million, four hundred ninety-four thousand, four hundred twelve".