72273256130 has 8 divisors (see below), whose sum is σ = 130091861052. Its totient is φ = 28909302448.

The previous prime is 72273256117. The next prime is 72273256141. The reversal of 72273256130 is 3165237227.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 72220650121 + 52606009 = 268739^2 + 7253^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3613662797 + ... + 3613662816.

Almost surely, 2^72273256130 is an apocalyptic number.

72273256130 is a deficient number, since it is larger than the sum of its proper divisors (57818604922).

72273256130 is a wasteful number, since it uses less digits than its factorization.

72273256130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7227325620.

The product of its (nonzero) digits is 105840, while the sum is 38.

The spelling of 72273256130 in words is "seventy-two billion, two hundred seventy-three million, two hundred fifty-six thousand, one hundred thirty".