72755945277 has 8 divisors (see below), whose sum is σ = 98455806816. Its totient is φ = 47780023632.

The previous prime is 72755945239. The next prime is 72755945321. The reversal of 72755945277 is 77254955727.

It is a happy number.

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

It is not a de Polignac number, because 72755945277 - 2²⁶ = 72688836413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72755945277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72755945237) 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, 180984738 + ... + 180985139.

It is an arithmetic number, because the mean of its divisors is an integer number (12306975852).

Almost surely, 2^72755945277 is an apocalyptic number.

It is an amenable number.

72755945277 is a deficient number, since it is larger than the sum of its proper divisors (25699861539).

72755945277 is a wasteful number, since it uses less digits than its factorization.

72755945277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361969947.

The product of its digits is 43218000, while the sum is 60.

The spelling of 72755945277 in words is "seventy-two billion, seven hundred fifty-five million, nine hundred forty-five thousand, two hundred seventy-seven".