72275652122 has 4 divisors (see below), whose sum is σ = 108413478186. Its totient is φ = 36137826060.

The previous prime is 72275652107. The next prime is 72275652149. The reversal of 72275652122 is 22125657227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22125657227 = 467 ⋅47378281.

It can be written as a sum of positive squares in only one way, i.e., 57005860081 + 15269792041 = 238759^2 + 123571^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72275652122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18068913029 + ... + 18068913032.

Almost surely, 2^72275652122 is an apocalyptic number.

72275652122 is a deficient number, since it is larger than the sum of its proper divisors (36137826064).

72275652122 is a wasteful number, since it uses less digits than its factorization.

72275652122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36137826063.

The product of its digits is 235200, while the sum is 41.

The spelling of 72275652122 in words is "seventy-two billion, two hundred seventy-five million, six hundred fifty-two thousand, one hundred twenty-two".