72653877412 has 6 divisors (see below), whose sum is σ = 127144285478. Its totient is φ = 36326938704.

The previous prime is 72653877407. The next prime is 72653877427. The reversal of 72653877412 is 21477835627.

It can be written as a sum of positive squares in only one way, i.e., 48024969316 + 24628908096 = 219146^2 + 156936^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72653877412.

It is an unprimeable number.

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, 9081734673 + ... + 9081734680.

Almost surely, 2^72653877412 is an apocalyptic number.

It is an amenable number.

72653877412 is a deficient number, since it is larger than the sum of its proper divisors (54490408066).

72653877412 is a wasteful number, since it uses less digits than its factorization.

72653877412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18163469357 (or 18163469355 counting only the distinct ones).

The product of its digits is 3951360, while the sum is 52.

The spelling of 72653877412 in words is "seventy-two billion, six hundred fifty-three million, eight hundred seventy-seven thousand, four hundred twelve".