72402251343227 has 128 divisors (see below), whose sum is σ = 85438450944000. Its totient is φ = 60837697105920.

The previous prime is 72402251343223. The next prime is 72402251343229. The reversal of 72402251343227 is 72234315220427.

It is a cyclic number.

It is not a de Polignac number, because 72402251343227 - 2² = 72402251343223 is a prime.

It is a super-4 number, since 4×72402251343227⁴ (a number of 57 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72402251343223) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 71052257924 + ... + 71052258942.

It is an arithmetic number, because the mean of its divisors is an integer number (667487898000).

Almost surely, 2^{72402251343227} is an apocalyptic number.

72402251343227 is a deficient number, since it is larger than the sum of its proper divisors (13036199600773).

72402251343227 is a wasteful number, since it uses less digits than its factorization.

72402251343227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861.

The product of its (nonzero) digits is 1128960, while the sum is 44.

The spelling of 72402251343227 in words is "seventy-two trillion, four hundred two billion, two hundred fifty-one million, three hundred forty-three thousand, two hundred twenty-seven".