72270735253 has 4 divisors (see below), whose sum is σ = 72358125120. Its totient is φ = 72183345388.

The previous prime is 72270735247. The next prime is 72270735269. The reversal of 72270735253 is 35253707227.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72270735253 - 2⁵ = 72270735221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72270735203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43693693 + ... + 43695346.

It is an arithmetic number, because the mean of its divisors is an integer number (18089531280).

Almost surely, 2^72270735253 is an apocalyptic number.

It is an amenable number.

72270735253 is a deficient number, since it is larger than the sum of its proper divisors (87389867).

72270735253 is an equidigital number, since it uses as much as digits as its factorization.

72270735253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87389866.

The product of its (nonzero) digits is 617400, while the sum is 43.

The spelling of 72270735253 in words is "seventy-two billion, two hundred seventy million, seven hundred thirty-five thousand, two hundred fifty-three".