72022772442641 has 4 divisors (see below), whose sum is σ = 73037177688384. Its totient is φ = 71008367196900.

The previous prime is 72022772442629. The next prime is 72022772442689. The reversal of 72022772442641 is 14624427722027.

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 72022772442641 - 2³⁰ = 72021698700817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72022772442641.

It is not an unprimeable number, because it can be changed into a prime (72022772442601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507202622765 + ... + 507202622906.

It is an arithmetic number, because the mean of its divisors is an integer number (18259294422096).

Almost surely, 2^{72022772442641} is an apocalyptic number.

72022772442641 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

72022772442641 is a deficient number, since it is larger than the sum of its proper divisors (1014405245743).

72022772442641 is a wasteful number, since it uses less digits than its factorization.

72022772442641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014405245742.

The product of its (nonzero) digits is 4214784, while the sum is 50.

The spelling of 72022772442641 in words is "seventy-two trillion, twenty-two billion, seven hundred seventy-two million, four hundred forty-two thousand, six hundred forty-one".